An aeroplane moving in a circular path w...

An aeroplane moving in a circular path with a speed `250 km//h`. The change in velocity in half of the revolution is.

A

500 km/hr

B

250 km/hr

C

125 km/hr

D

zero

Text Solution

Verified by Experts

The correct Answer is:

A

`v_(i) = 250km//hr`
`v_(r) = 2 sin .(theta)/(2)`
`theta= pi`
Then `v_(F) = 2 xx 250 xx sin .(pi)/(2)km//hr`
`" "v_(F) = 500 km//hr`

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