Question that I simply can't figure out and need help!

A wedge with an inclination of angle theta rests next to a wall. A block of mass m is sliding down the plane, as shown. There is no friction between the wedge and the block or between the wedge and the horizontal surface.

1) Find the magnitude, F_net, of the sum of all forces acting on the block.

Which I found to be mgsin(theta) and is the correct answer

2) Find the magnitude, F_ww, of the force that the wall exerts on the wedge. Express F_ww in terms of theta and m, along with any necessary constants.

This second part is the part I am having trouble with

Thanks

Answers and Replies

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Hootenanny
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2) Find the magnitude, F_ww, of the force that the wall exerts on the wedge. Express F_ww in terms of theta and m, along with any necessary constants.
Welcome to PF msilva,

How do you think that this problem should be approached. Which concepts are applicable?

P.S. For future reference, we have homework forums for such problems.

Hey msilva, why don't you start by drawing up the problem, then try to imagine the forces acting upon your block.