For the first a toy car moves with a constant velocity of

PHYSICS · Single correct · GCSE · Physics · Forces · Forces

Problem

For the first

4\,\text{s}

a toy car moves with a constant velocity of

6\,\text{m/s}

. It then decelerates uniformly to rest in the next

3\,\text{s}

. Calculate the displacement covered in the whole

7\,\text{s}

. (a)

24\,\text{m}

(b)

42\,\text{m}

(c)

33\,\text{m}

(d)

21\,\text{m}