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Problem 1 - Entrance Test

A block of mass 2 kg is moving with a velocity of 3 m/s on a smooth horizontal surface. A force of 6 N is applied on the block in the direction of its motion. Find the acceleration of the block. (g = 10 m/s^2)

Correct: D

Using Newton's second law of motion, F = ma. Given F = 6 N, m = 2 kg. So, a = F/m = 6/2 = 3 m/s^2.