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