Yes,it happens when the rest object is in the things that can accelerates.for example a rest body in a car which the car accelerating,so the body also accelerates due to motion of the car..a body in an elevator also can explain this concept..ehehe
TEST YOUR UNDERSTANDING: 1)is possible that an object moves with constant speed has acceleration? 2)if object is travel from A to B the it return back to A.determine displacement of the object
Sachini S3T5 1. Yes because although it moves with constant speed, the direction of the velocity will change. 2.0, since the object returns to its initial position.
Thank you madam ,after watching this video we can know what the differences between distance, displacement, speed and velocity ..and not get confuse to it 😂🙂
nabilah S3T5 1) we can determine acceleration by calculate the gradient of the graph 2) calculate distance and displacement by calculate area under the graph ..
Thinesh F3T3 1)accelaration is the gradient of the graph 2)distance is the total area under the graph 3)displacement is total area under the graph too but it has positive and negative values since it is a vecto quantity
alia F3T3 1. by calculate the gradient of the graph 2. by calculate the total area under the graph n ignore the negative n positive sign because distance is scalar quantity 3. by calculate the area under the graph by considering the negative n positive sign because it is vector quantity
Hanis S3T5 1.calculate the gradient of the graph 2.area under the graph by ignoring (+ve) and (-ve) sign because distance is a scalar quantity. 3.calculate area under the graph and has (+ve) and (-ve) sign because vector quantity
1) gradient under the graph 2) total area under the graph without considering positive and negative sign because distance is scalar quantity 3) total area under the graph but need to consider positive and negative sign because displacement is vector quantity
Congrates to all of you.W 🤩 for the great answer..exactly 1)acceleration=gradient under v-t graph 2)distance=area under v-t graph..only value because scalar quantity 3)displacement= area under v-t graph..should consider +ve/-ve area because it is vector quantity
Good try fariza and all,anything that cross in your mind just transform/expressed it into text here..we can check your understanding by this discussion..we can avoid/solve any physics misconception insyaAllah 😃😃😃
Tan S2T1 This is because the ball is moving downwards from its initial point. If the initial point is 0, then the displacement down 0 (downward motion) is considered negative value.
👍👍💯😍perfect!!!congrates to both of u..great answer..exactly,the displacement is -ve because the displacement( shortest distance in straiht line between initial and final point) is below of released point
👍💯😍very good..acceleration is vector quantity.must consider both magnitude and direction..hence,the -ve acceleration occurs if one of them is -ve..concept of algebra
If I saw a fallen tree at a distance of 10 m in front of my car and then I was brakes, would my car hits the tree?how i can know either my car hits the tree or not?
Answer questions in TEST SEMESTER 1 for CHAPTER 2 okes😍
ReplyDeleteDiana S3T5
ReplyDeleteThank you madam i understand this chap better
😃
DeleteSachini S3T5
ReplyDeleteMadam..can i know why the object still experience acceleration even when it is in rest?
This comment has been removed by the author.
DeleteThis comment has been removed by the author.
DeleteYes,it happens when the rest object is in the things that can accelerates.for example a rest body in a car which the car accelerating,so the body also accelerates due to motion of the car..a body in an elevator also can explain this concept..ehehe
DeletePrissha S3T5
ReplyDeleteThank you madam. Able to understand well
😃
DeleteTEST YOUR UNDERSTANDING..
ReplyDeleteWhat happens to the motion in x direction?
Sachini S3T5
DeleteWhen resolved, the motion in x direction will not be influenced by gravity.
Diana S3T5
DeleteThe motion in x direction is not affected with gravity
For projectile motion👆
ReplyDeleteThen,why still has velocity in x direction at any point?
DeleteTo be resolved to obtain the final velocity
DeleteSachini S3T5 👆
DeleteTEST YOUR UNDERSTANDING:
ReplyDelete1)is possible that an object moves with constant speed has acceleration?
2)if object is travel from A to B the it return back to A.determine displacement of the object
ANSWER THIS QUESTIONS😍
Sachini S3T5
Delete1. Yes because although it moves with constant speed, the direction of the velocity will change.
2.0, since the object returns to its initial position.
Diana S3T5
Delete1. Yes because the velocity of the object will change according to direction
2. 0
Perfect!!!😍😀very good
Delete1.Yes because the velocity of the object will change according to direction.
Delete2. 0
2)if an object travelling from A to B then it return back to point A.Determine the displacement of the object?
ReplyDeleteAlia F3T3
Deletethe displacement is zero.. because its return back to initial point
Thank you madam ,after watching this video we can know what the differences between distance, displacement, speed and velocity ..and not get confuse to it 😂🙂
ReplyDeleteVery good..sham,answer all questions above
DeleteIf we are given velocity -time graph,how to determine :
ReplyDelete1)acceleration
2)distance
3)displacement
Fazrin S2T1
Delete1) Acceleration
By calculate the gradient of
the graph.
fariza S2T1
Deleteis it distance is area under the graph,madam?
Sachini S3T5
Delete1. Gradient of the graph
2.total of area under the graph by ignoring the positive and negative sign.
3.area under the graph
👍😍need consider +ve/-ve area for displacement
Deletenabilah S3T5
Delete1) we can determine acceleration by calculate the gradient of the graph
2) calculate distance and displacement by calculate area under the graph ..
fariza S2T1
ReplyDelete1)acceleration is equal to gradient
3)displacement is equal to area under the graph
Thinesh F3T3
ReplyDelete1)accelaration is the gradient of the graph
2)distance is the total area under the graph
3)displacement is total area under the graph too but it has positive and negative values since it is a vecto quantity
👍💯😃
Deletealia F3T3
ReplyDelete1. by calculate the gradient of the graph
2. by calculate the total area under the graph n ignore the negative n positive sign because distance is scalar quantity
3. by calculate the area under the graph by considering the negative n positive sign because it is vector quantity
👍💯..perfect
DeleteThis comment has been removed by the author.
DeleteHanis S3T5
ReplyDelete1.calculate the gradient of the graph
2.area under the graph by ignoring (+ve) and (-ve) sign because distance is a scalar quantity.
3.calculate area under the graph
and has (+ve) and (-ve) sign because vector quantity
👍💯😍
Delete1) gradient under the graph
ReplyDelete2) total area under the graph without considering positive and negative sign because distance is scalar quantity
3) total area under the graph but need to consider positive and negative sign because displacement is vector quantity
👍💯perfect..
Delete👍💯😍
DeleteCongrates to all of you.W 🤩 for the great answer..exactly
ReplyDelete1)acceleration=gradient under v-t graph
2)distance=area under v-t graph..only value because scalar quantity
3)displacement= area under v-t graph..should consider +ve/-ve area because it is vector quantity
Good try fariza and all,anything that cross in your mind just transform/expressed it into text here..we can check your understanding by this discussion..we can avoid/solve any physics misconception insyaAllah
ReplyDelete😃😃😃
If a man thrown a ball vertically upward with initial velocity,u from roof of building of 15 m.determine:
ReplyDelete1)displacement of the ball when it return back to released point.
2)displacement of the ball
2)
Sachini S3T5
ReplyDelete1. 0
2. -15
Why the displacement of the ball is negative?give your reason
ReplyDeleteTan S2T1
DeleteThis is because the ball is moving downwards from its initial point. If the initial point is 0, then the displacement down 0 (downward motion) is considered negative value.
Sachini S3T5
DeleteBecause the ball moves below the releade point
👍👍💯😍perfect!!!congrates to both of u..great answer..exactly,the displacement is -ve because the displacement( shortest distance in straiht line between initial and final point) is below of released point
ReplyDeleteCorrection:straiht=straight
ReplyDeleteacceleration can be +ve and -ve : discuss about these concept..at what condition acceleration becomes +ve/-ve?
ReplyDeleteSyafiqah S2T1
Deleteacceleration becomes negative when the object
i) decelerates in +ve direction
ii) acccelerate in -ve direction
acceleration becomes positive when the object
i) accelerate in positive direction
11) decelerate in negative direction
👍💯😍very good..acceleration is vector quantity.must consider both magnitude and direction..hence,the -ve acceleration occurs if one of them is -ve..concept of algebra
DeleteIf I saw a fallen tree at a distance of 10 m in front of my car and then I was brakes, would my car hits the tree?how i can know either my car hits the tree or not?
ReplyDelete