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Patolord
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Homework Statement
A sphere of mass 2kg is release from point A off the edge of a hole that is represented of as a semi-circle of R=0,2 m.
consider g=10m/s²
What is the force that the ground apply on the sphere when it passes trough point B(bottom of the hole?
Homework Equations
Ep=m*g*h
Ec=m*v²/2
Q=m*v
F=m*a
The Attempt at a Solution
I tried finding the Potential energy of the sphere at point A that is
Ep=2kg*0,2m*10m/s² = 4J
and the weight of the sphere that is 2*10= 20 N
I don't know what to do anymore the velocity at point B i considered 2m/s because of
Ep=Ec=m*v²/2 then V=2m/s
Help?
Image not from actual problem point A would be the left point B where it is on the pic
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