Question

a bus moving with a velocity of 60 km/is bought to rest in 20 sec by applying brakes,Find its initial velocity.

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Answer 1

Answer:

Initial velocity,U= 60 km/hr

=60×5/18

=16.7ms-1

Final velocity,V=0

Time=20s

Acceleration,a=

a=v-u /t

= 0-q6.7/20

=16.7/20

=0.835ms-2

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Answer 2

Answer:

0.835ms-2

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