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A 20 kg car moving at a speed of 0.5m//s...

A 20 kg car moving at a speed of `0.5m//s` to the right collides head on with a 35 kg car at rest. After cllision, the 35kg car is observed to move to the right with a speed of `0.2m//s`. Find coefficient of restitution 'e' and fill 100e in the OMR sheet.

Text Solution

Verified by Experts

`20xx0.5=35xx0.2+20xx"v"`
`10-7=20" v"`
`"v "=+(3)/(20)"m"//"s"=0.15" m"//"s"`
`e=(0.2-(0.15))/(0.5-0)=(1)/(10)`
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