Question

A car starting from rest moves with a uniform acceleration of 1 m/2. Find its velocity after travelling for 5 minutes.

Answer 1

Answer:

720m

Explanation:

a=0.1m/s

2

and t=2min=120s

(A)v=u+at=0+0.1×120

⟹v=12m/s

(b)s=ut+

2

1

at

2

⟹s=0+

2

1

×0.1×(120)

2

⟹s=720m

Answer 2

given :

initial velocity of car = 0m/s

acceleration of car = 1 m/s²

time travelled = 5min

acceleration = (v-u)/t, where

u is initial velocity

v is final velocity

t is time

so, a = (v-u)/t

=> v= u+at

so final velocity = 0+(1m/s² * 300s)

= 0+300m/s

= 300m/s

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