Chemistry, asked by djdj86917, 1 month ago

A bus of mass 5 kg starts from rest and accelerates uniformly to a speed of 18 m/s in 10 s. Brakes are applied and then it stops in 4 seconds. The force of acceleration on the bus is

Answers

Answered by sggaming955

0

SOLUTION

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Formulae,

ut+21at2=50t

0+21×5×t2=50t

t=50×52=20s

v2=u2+2as

v2=0+2×5×(50×20)

v2=10000

∴v=100m/s

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