Understanding Interaction Forces: Getting Help with a Frustrating Topic

[bubbleeyes]

Can anyone help me with...

Can someone please help me with interaction forces. I am completely stumped about this its making me really mad!



Thanks

 

[ZapperZ]

Can someone please help me with interaction forces. I am completely stumped about this its making me really mad!



Thanks

You cannot expect to receive any kind of meaningful help when you are THIS vague. Be specific. If this is a question regarding school work, please use the Homework, Coursework, & Textbook Questions forum. Take note of the rules for that forum before posting.

Zz.

 

[bubbleeyes]

I just don't get the concept of the whole thing.
Question:
A pulley and ramp are frictionless and the black is in static equilibrium. What is the mass of the block? If the degree is 35 and has 20 kg

 

[russ_watters]

Draw a free body diagram (similar to the triangle of the ramp...) Use trigonometry to find the forces (you have one leg of the triangle already, and all the angles...).

 

[sporkstorms]

A pulley and ramp are frictionless and the black is in static equilibrium.

When they say the system is in equilibrium, they're saying that the net force is zero: that is, all the forces cancel each other.

Since it's a static equilibrium, the block and anything else being affected by forces in the system is stationary.