Question

a scooter acquires at 36km/hr speeds upto 70km/hr in 5 seconds what is its acceleration? if the same car stops in 20s . what is the retardation
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Answer 1

in the given question we have

u=36 km/hr =36×

18

5

m/s=10m/s

v= 72 km/hr=72×

18

5

m/s=20m/s

t=10 s

a=?

we know the formula

v= u +at

20 = 10+ a 10

20-10 =10 a

10 = 10 a

a = 1 m/s

2

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Answer 2

Answer:

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