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A.Weight of the ball.

B.Impact force on the pan due to the ball.

C.Impulse on the pan due to the ball.

Actually, what is the difference between impact force and impluse, thanks.

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- Thread starter fork
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A.Weight of the ball.

B.Impact force on the pan due to the ball.

C.Impulse on the pan due to the ball.

Actually, what is the difference between impact force and impluse, thanks.

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James R

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Andrew Mason

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fork said:A tennis ball is dropped from a certain height onto the top pan of the balance measure?

A.Weight of the ball.

B.Impact force on the pan due to the ball.

C.Impulse on the pan due to the ball.

Actually, what is the difference between impact force and impluse,

Newton's second law can be stated in the following ways:

[tex]F = dp/dt = d(mv)/dt = mdv/dt = ma[/tex]

Think of the tennis ball hitting the ground and coming to a complete stop. The force is:

[tex]F = dp/dt = \frac{0 - mv}{\Delta t}[/tex]

The quantity:

[tex]F\Delta t = \Delta p = m\Delta v[/tex]

is called the impulse: a force applied for a certain time interval. It is equal to the change in momentum of the mass to which the force is applied.

Does that help you answer the questions?

AM

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O, i get it, so the ans is B.

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