SET A Multiple Choice : 1. A particle is moving to the left with a velocity of -6m/s at a certain point. Its acceleration is +2m/s 2 . Which statement is true? a. Its velocity will increase to 10m/s to the left in 2 seconds. b. Its velocity will decrease to zero (0m/s) in 3 seconds and begin to increase by +2m/s every second onwards. c. Its velocity is increasing by 2m/s every second on its entire motion. d. a c 2. You are throwing a ball straight up in the air. At the highest point, the ball’s a. velocity and acceleration are zero. c. acceleration is nonzero, but its velocity is zero. b. velocity is nonzero but its acceleration is zero. d. velocity and acceleration are both nonzero. 3. On a velocity vs, time graph, a horizontal straight line corresponds to a motion at a. constant velocity. c. increasing velocity b. decreasing velocity
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