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A bus starts movins with uniform acceler...

A bus starts movins with uniform acceleration from it position of rest. If moves 48 m in 4s. On applying the brakes, its stops after covering 24m. Find the deceleration of the bus

Text Solution

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(i) What is the initial velocity of the bus?
If the bus moves 48 m in 4,s find the velocity of the bus at the end fo 4s
Use the formula, `syt=(1)/(2)at^(2)` and v+u at
When brakes are applied, the bus stops after covering 24 m
What is the final velocity fo the bus?
Then , find the deceleration of the bus by using the formula, `v^(2)-u^(2)=2as`.
(ii) `12 ms^(-1)`
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