Question

A bus starting from rest attains the velocity 72kmph in 5 minutes if the accrleration is uniform it's acceleration is (in m/s^2)

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Answer 1

Explanation:

QUESTION:

A bus starting from rest attains the velocity 72kmph in 5 minutes if the accrleration is uniform it's acceleration is (in m/s^2)

REQUIRED SOLUTION:

Starting from rest implies the initial velocity is zero.

u=0

v=72Km/h=20m/s

v=u+at

20=0+a x 300

a=1/15 m/s2

distance travelled

s=ut+0.5at2

s=0+0.5 x (1/15) x 90000=3000m=3Km