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A toy car weighing 1 kg tied at the end ...

A toy car weighing 1 kg tied at the end of a tring 1 m long moves in a circle on the ground. What is the maximum possible speed of the car if the string has a breaking strength of 9 N?

A

`9 m//s`

B

`3m//s`

C

`1.5m//s`

D

`0.75s`

Text Solution

Verified by Experts

The correct Answer is:
B
`F=(mv^(2))/(r)`
`v^(2)=(Fr)/(m)=(9xx1)/(1)`
`v=3m//s`
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