JAMB - Physics (1983 - No. 24)

a force of 16N applied 4.0kg block that is at rest on a smooth, horizontal surface. What is the velocity of the block at t = 5 seconds?
4ms-1
10ms-1
20ms-1
50ms-1
80ms-1

Explanation

F = ma

= \(\frac{m(u - v)}{t}\)

16 = \(\frac{4(v - 0)}{5}\)

v = 20ms-1

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