A block of mass 0.6 kg rests on the inclined(adsbygoogle = window.adsbygoogle || []).push({});

surface of a wedge of mass 1.8 kg. The wedge

is acted upon by a horizontal force F and slides on a frictionless surface.

The acceleration of gravity is 9.81 m/s

If the coeﬃcient of static friction between

the wedge and the block is 1 and the angle of

the incline is 23º, ﬁnd the minimum value of

F for which the block does not slip.

Answer in units of N

My attempt to a solution

I haven't done it b my plan is to find the normal force and friction to find the acceleration, but I noticed that in order for block to be still, mgcosθ should be equal to N and since the friction f = μN and μ=1, f = N so f = mgcosθ. It can't be right because f = Nsinθ and it just doesn't seem right. What should I do? Are there any mistake in my plan to solve this problem?

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Ramp Problem Help Needed!

**Physics Forums | Science Articles, Homework Help, Discussion**