Question

1. A car’s speedometer reads 20 m/s after accelerating, from a standing start, for 25s. What was the magnitude of its acceleration?

Answer 1

Answer:

acceleration =total distance/total taken time

Explanation:

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Answer 2

Answer:

0.8ms-2

Explanation:

initial velocity=0

final velocity=20ms-1

As

Acceleration=final velocity-initial velocity/time

So

Acceleration=20-0/25

=4/5

=0.8

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