Question

MOTION(PHY
2
Question 1
(a) "The value of g remains same at all places on the earth surface'. Is this statement true? Give reason
for your answer.
(b) Can displacement be zero even if distance is not zero ? Give one example to explain your answer.
© The diagram below shows the pattern of the oil dripping on the road, at a constant rate from a moving
car. What information's do you get from it about the motion of car ?
2.
2.
ELD
car in
NO
motion
(d) Define acceleration. State its S.I. unit.
(e) The speed of a car is 72 km h Express it in ms.
Question 2
(a) When is a body said to be at rest?
(6) State the type of motion represented by the following sketches in Figure (a) and (b).
2
2
Velocity
Velocity
3
3
Time
Time
(a)
(b)
(c) What does the slope of a displacement-time graph represent? (b) Can displacement-time sketch be
parallel to the displacement axis ? Give reason to your answer.
(d) Figure shows the velocity-time graph for two cars A and B moving in same direction. Which car has
the greater acceleration ? Give reason to your answer.
YA
-B
Veloctiy
X
Time
Question 3
(a) When is the instantaneous speed same as the average speed?
(b) When is the magnitude of displacement equal to the distance?
(C) Define speed. What is its S.I. unit?
(d) When is a body said to be in motion ?
(e) A body starts from rest with a uniform acceleration 2 ms. Find the distance covered by the body in
2s.
All the Best​

Answer 1

Explanation:

1.a) no value of g vary from place to placebecause on the surface of earth it is 9.8 metre per second and when we move away from surface of earth its value decreases

b) yes displacement can be zero if distance is not zero because when we move in a circular path and come back to initial point from where we started then a distance is pie r and and displacement is zero