The velocity time graph for motion of two bodies A and B is shown. Read the graph carefully and
answer the following questions.
(a) Which of the two bodies has a higher velocity at
time (a) t = 2 s (b) t = 4 s?
(b) Which of the two bodies has (a) constant velocity
(b) increasing velocity?
(c) At what time is the velocity of the two bodies
same?
(d) What are the velocities of A and B at time t = 1s?
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let us take the body moving with uniform velocity as A and the other moving with uniform acceleration B(having inclined slope).
1. a) at t = 2s body A has higher velocity
b) at t = 4s body B has higher velocity.
2. a) body A has constant velocity .
b) body B has increasing velocity.
3. at t = 3s the velocity of the two bodies is same .
4. at t = 1s velocity of
body A is 30m/s and body B is 10m/s.
5. at first time interval (that is at t = 2s) the velocity is 20m/s. And at second time interval (that is at t = 4s) the velocity is 40m/s.
change in velocity = velocity at second interval - velocity at first interval
= (40-20)m/s
= 20m/s
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