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1. You have one last large 50 kg crate to move from your apt to your...

1. You have one last large 50 kg crate to move from your apt to your car and your inconsiderate roommate took the cart with him. So in order to move the crate, you tie a string to it and pull at an angle of 30° above the horizontal such that you move the crate along at a relatively constant speed. The coefficient of kinetic friction between the floor and the crate is 0.2 and the coefficient of static friction between the floor and the crate is 0.4. What is the magnitude of the force you are applying?

2. A 5 kg block is at rest on an incline plane of 30°. The coefficient of static friction is ?? = 0.7. What is the force of static friction?

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