Physics, asked by varnit85, 10 months ago

1. A train started from rest and reached a velocity of 72 km/hr in 5 s. Which of the following is its
acceleration?
2.5 km/hr
2.5 m/s2
4 km/hr
4 m/s2​

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Answers

Answered by sweetpea
2

Answer:

u=0

v= 72k/h= 20m/s

t=5

a= v-u/t

a=20-0/5

a=20/5

a=4m/s2

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Answered by sahilsharma36
1

Explanation:

train started from rest so initial value u=0 ,final velocity=72 km/hr=20 m/s,time t=5 s ,acceleration a=?

a=v-u/t

a=20-0/5

a=20/5

a=4 m/s^2  Ans

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