A car starts from rest

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

Problem

A car starts from rest, accelerates uniformly at

2\,\text{m}\,\text{s}^{-2}

for

10\,\text{s}

and then moves with the speed attained for another

20\,\text{s}

. The total displacement of the car in this

30\,\text{s}

interval is (a)

600\,\text{m}

(b)

900\,\text{m}

(c)

500\,\text{m}

(d)

400\,\text{m}

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