A block starts from rest and is pushed by a constant horizontal force through

PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

2\,\text{kg}

block starts from rest and is pushed by a constant horizontal force through

4\,\text{m}

, reaching a speed of

4\,\text{m/s}

. The same force then acts on a

3\,\text{kg}

block, also starting from rest, through the same displacement. What will be the final speed of the

3\,\text{kg}

block? (a)

4.0\,\text{m/s}

(b)

2.6\,\text{m/s}

(c)

3.3\,\text{m/s}

(d)

5.3\,\text{m/s}