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A stone of 1 kg its thrown with a veloci...

A stone of 1 kg its thrown with a velocity of 20 m `s^(-1)` acroos the frozen surface of a lake and comes to rest after travelling a distance of 50 m. What is the force of friction between the stone and the ice ?

Text Solution

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`V_(2) = u + 2as`
` a = (400)/(100) = -4m//s^(2)`
`F = ma = 1 xx -4 m//s = - 4N`
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