Question

An object returns to the starting point after 10
seconds. If the rate of change of velocity during the
motion is fixed, location of object after the 7
seconds will be same as that after​

Answer 1

Answer:

this is the case when velocity and acceleration of the body both are in opposite direction so body will first moves in direction of velocity and then will move in direction of acceleration.

in the given question it is said that body returns to initial position after 10 sec.[this case can be treated same as motion of body in vertical direction with constant acceleration downwards and thrown upward initially]

means velocity of body will be zero at 5 sec.

displacement will be symmetric about the zero velocity time so will be at same position at time 3 sec which will be at 7 sec.