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# How long does a bicycle with an acceleration of 0.8m/s2 take to go from 4 to 12m/s...

### Question

How long does a bicycle with an acceleration of 0.8m/s2 take to go from 4 to 12m/s?

### Options

A) 6.4s

B) 10s

C) 15s

D) 26s

E) None of the above

### Explanation:

$$v=u+at$$
$$12=4+0.8t$$
$$12-4=0.8t$$
$$\cfrac{8}{0.8}=t$$
$$t=10$$secs

Explanation provided by Steve Zeal

## Dicussion (1)

• Steve Zeal

$$v=u+at$$
$$12=4+0.8t$$
$$12-4=0.8t$$
$$\cfrac{8}{0.8}=t$$
$$t=10$$secs