# Search results

1. ### Force of Friction Equation?

I think the reason that my problems have arisen is because of my equation for the force of friction. I have Ff= ucosAngle That right?
2. ### Force of Object on Inclined Place

I need extra help. I'm studying for my Final Exam which is tomorrow and I cannot remember how to find forces of objects on an inclined plane. The question I'm having troubles with is: A 12.5 kg crate is placed on a ramp that is at an angle of 22 degrees from the horizontal. Find the...
3. ### Final Exam Question Help

Final Exam Question Help!!! HELP!! I need extra help. I'm studying for my Final Exam which is tomorrow and I cannot remember how to find forces of objects on an inclined plane. The question I'm having troubles with is: A 12.5 kg crate is placed on a ramp that is at an angle of 22 degrees...
4. ### Mechanics of a spring

There is a question involving a simple land rover that can be controlled to go a certain distance. It is two pop bottles connected spout to spout and attached around the middle is a metal tape measure which one would roll up and then let go for the rover to move. I have to explain the mechanics...
5. ### Heat resistant and truly frictionless substance

QUESTION If it were possible to make a tough, heat resistant and truly frictionless substance, what applications would it have? [?]
6. ### I really need Help SERIOUSLY

Ok....the puzzler. I haven't gotten really far. But this is what I have.... Vertical: Delta X= -12.96 m Vo= 0m/s a= -9.80 m/s-squared- v-squared- = vo-squared- + 2aDelta x v= 15.94 m/s v = vo + at t= 1.626 s Horizontal: Delta x= 7.5 m t= 1.626 s v= ? Delta x = vxt vx=...
7. ### Physics Puzzler!

HELP!!!!! I am in grade 12 physics and my teacher gave us a puzzler for the weekend. I need serious help with it and all of my classmates cant figure it out either! The question is : A 10.8 kg box is 5.0 m from the edge of a 12.96 m high cliff. Bob pushes the box over the edge of the cliff by...