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Calculate the correct value:
A ball of mass \(5\ kg\) moving with a speed of \(10\ ms^{-1}\) rebounds after a perfect elastic collision with the floor. Calculate the change in linear momentum of the ball.
Mass of a ball (\(m\)) \(=\) \(kg\)
Velocity of the ball before collision (\(u\)) \(=\) \(ms^{-1}\)
Velocity of the ball after collision (\(v\)) \(=\) \(-\) \(ms^{-1}\)
The formula to calculate the change in linear momentum is
On substituting the known values, we get
Change in linear momentum of the ball \(=\) \(-\) \(kg\ ms^{-1}\)
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