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A cylist travelling at 10m/s applies bra...

A cylist travelling at 10m/s applies brakes and stops in 25m m. The graph shows the magnitude of the braking force versus the distance travelled.

What is the total mass of bike and cyelist?

A

20 kg

B

40kg

C

64 kg

D

80kg

Text Solution

Verified by Experts

Area under curve=work done
`=160xx15+(160xx10)/(2)=3200`
`(1)/(2)xxmxx10^(2)=3200rArrm=64kg`
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