The question is: A volleyball is spiked so that incomingvelocity is 3.7m/s is ch

Question

The question is: A volleyball is spiked so that incomingvelocity is 3.7m/s is changed to an outgoing velocity of -16 m/s.The mass of the vball is 0.34kg. what impulse does the player applyto the ball? On the solutions there is a negative number and the rating islike a 3. Can you please help me work the problem. The answer i gotwas -6.7 kg m.s. The question is: A volleyball is spiked so that incomingvelocity is 3.7m/s is changed to an outgoing velocity of -16 m/s.The mass of the vball is 0.34kg. what impulse does the player applyto the ball? On the solutions there is a negative number and the rating islike a 3. Can you please help me work the problem. The answer i gotwas -6.7 kg m.s.

Explanation / Answer

Initila velocity   u = -3.7 m / s

Outgoing velocity v = +16 m / s

Impulse J = m( v- u )

Magnitude of impulse = 6.7 kg m / s

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