Question

B. A point mass starts moving in a straight line with constant acceleration “a”. At a time
t after the beginning of motion, the acceleration changes sign, without change in
magnitude. Determine the time t, from the beginning of the motion in which the
point mass returns to the initial position. ​

Answer 1

Explanation:

A point mass starts moving in straight line with constant acceleration a from rest at t=0. At time t=2s, the acceleration changes the sign remaining the same in magnitude. The mass returns to the initial position at time t=t0 after start of motion.