1.

Suppose your mass is 50 kg, how fast should you run so that your linear momentum become equal to that of cycle rider of 100 kg moving along a straight road with a speed of 20 km/h?

Answer»

`40m//s`
`20km//h`
`11.11m//s`
`10.00km//h`

Solution :Your MOMENTUM = momentum of CYCLE RIDER
`m_(1)v_(1)=m_(2)v_(2)`
`therefore v_(1)=v_(2)XX(m_(2))/(m_(1))`
`=(20xx100)/(50)`
`=40km//h`
`=(40xx1000)/(3600)m//s`
`=11.11m//s`


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