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petern
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[SOLVED] Finding Velocity for Work and Energy Problem
A 2 kg physics textbook is dropped form rest out a window 10 meters above the ground. What is the textbook's speed when it's kinetic and potential energies are equal?
The answer is v = 9.90 m/s.
You would use the equation U = (1/2)kx^2 and K = (1/2)mv^2, right?
I really don't know what to do especially since the k is in the equation of U. How do I solve this?
A 2 kg physics textbook is dropped form rest out a window 10 meters above the ground. What is the textbook's speed when it's kinetic and potential energies are equal?
The answer is v = 9.90 m/s.
You would use the equation U = (1/2)kx^2 and K = (1/2)mv^2, right?
I really don't know what to do especially since the k is in the equation of U. How do I solve this?
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