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A car is moving on a circular road of ra...

A car is moving on a circular road of radius `100m`. At some instant its speed is `20m//s` and is increasing at the rate of `3m//s^(2)`. The magnitude of its acceleration is

A

`3m//s^(2)`

B

`2m//s^(2)`

C

`4m//s^(2)`

D

`5 m//s^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`a_("net") = sqrt(a_(T )^(2) +a_(R )^(2))=sqrt(3^(2)+4^(2))=5m//s^(2)`
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