6C-Lab Report: Impulse and Change of Momentum Name: Prediction How is the amount

Question

6C-Lab Report: Impulse and Change of Momentum Name: Prediction How is the amount of impulse exerted on an object change in momentum of the object during the collision? during a collision related to the Observations Why does the velocity of the cart change from a positive value before the collision to a negative value after the collision? 1. 2. Why is the area under the curve for the force graph equal to the impulse? Calculations Calculate the change in momentum. Multiply the total mass of the cart by the change in velocity. Record the result. Compare the change in momentum to the impulse (Area under the force curve). Calculate the percent difference.

Explanation / Answer

Prediction

By impulse momentum theorem, the impulse exerted is equal to the change in momentum.

Observations:

1) Because the direction of motion reverses.

2) Impulse is the product of force and time.

I = Ft

Th area under a Force time graph gives the product of F ant t, thus it eqials the impulse.

Calculations:

Use change in momentum = m (vf-vi)

Impulse = area of Ft graph

Use your data.

Then compare your two results

Questions:

1) Calculation error is a possible source of difference.

2) Equal.

3) Yes.

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