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A scooter going due east at 10 ms^(-1) t...

A scooter going due east at `10 ms^(-1)` turns right through an angle of `90^(@)`. If the speed of the scooter remain unchanged in taking turn, the change is the velocity the scooter is

A

20.0 `m s^(-1)` in south-western direction

B

zero

C

`10.0 m s^(-1)` south-east direction

D

`14.14m s^(-1)` in south-western direction

Text Solution

Verified by Experts

The correct Answer is:
D
`vecv_(i)=10hati rArr vecv_(f)=10hatj`
`Deltavecv=vecv_(i)-vecv_(i)=-10hatj-10hati` (south-west)
`Deltav=sqrt((10)^(2)+(10)^(2))=14.14 m//sec`
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ALLEN -MOTION IN A PALNE-EXERCISE-2
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