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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Answered by
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
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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