How Does Surface Impact Affect Force on Falling Putty?

Thread starter fitchguy316
Start date Dec 10, 2007
Tags

Collisions Linear Linear momentum Momentum

AI Thread Summary

The discussion focuses on calculating the average force exerted on a .45kg piece of putty dropped from a height of 2.5m, which comes to rest in 0.30 seconds upon impact with a flat surface. Using the formula for impulse, the change in momentum is determined by the initial velocity at impact, calculated from the drop height. The average force can then be derived from the mass and the acceleration, which is found by dividing the change in velocity by the time taken to stop. The importance of the surface's impact on the force experienced by the putty is emphasized, highlighting how different surfaces could alter the results. Understanding these principles is crucial for analyzing the dynamics of falling objects and their interactions with surfaces.

Dec 10, 2007

fitchguy316

A .45kg piece of putty is dropped from a height of 2.5m above a flat surface. When it hits the surface, the putty comes to a rest in .30s. What is the average force exerted on the putty by the surface?

V=d•t

F=m•a

a=v/t

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Dec 10, 2007

Doc Al

Mentor

impulse

Hint: Consider the impulse delivered by surface.

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