Physics

Problem

2\,\text{kg}

block sliding on a smooth horizontal surface has an initial speed of

3\,\text{m/s}

. A constant horizontal force of

10\,\text{N}

acts on it over a displacement of

5\,\text{m}

. Calculate the block's speed after it has moved the

5\,\text{m}

. a)

6.4\text{ m/s}

7.1\text{ m/s}

7.7\text{ m/s}

5.8\text{ m/s}