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Thank you for your help!!!

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- Thread starter kgtp1999
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Thank you for your help!!!

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When you release the pendulum it converts gravitational potential energy (GPE) of the raised weight at 45 degrees, to kinetic energy (KE) of impact. You can easily find GPE and KE but if I recall properly the force during collision depends on the elastic properties of the bodies. Also it is not clear what the "object" is in your problem statement.

Edit: hyperphysics treats the basic concept of impulse force here:

http://hyperphysics.phy-astr.gsu.edu/HBASE/Impulse.html

The formula Favg*d = -(1/2)m*v^2 appears at the link page and might solve your problem if stopping distance "d" can be estimated as the bag comes to a stop as it hits the object.

Edit: hyperphysics treats the basic concept of impulse force here:

http://hyperphysics.phy-astr.gsu.edu/HBASE/Impulse.html

The formula Favg*d = -(1/2)m*v^2 appears at the link page and might solve your problem if stopping distance "d" can be estimated as the bag comes to a stop as it hits the object.

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