1. You are helping your friend move a new refrigerator into his kitchen. You app

Question

1. You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 266 N in the positive x direction to try and move the 54-kg refrigerator. The coefficient of static friction is 0.62.

(a) How much static frictional force does the floor exert on the refrigerator? Give both magnitude and direction.
_________ magnitude

2. The figure below shows two blocks connected by a string of negligible mass passing over a frictionless pulley. m1 = 7.2 kg and ? = 12.0. Assume that the incline is smooth.

(a) For what value of m2 will the system be in equilibrium?
m2 = ______ kg

(b) If the block has to slide down the incline with an acceleration of 1.0 m/s2, what should be the value of m2?

m2 = ______ kg

1. You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 266 N in the positive x direction to try and move the 54-kg refrigerator. The coefficient of static friction is 0.62. (a) How much static frictional force does the floor exert on the refrigerator? Give both magnitude and direction. _________ magnitude 2. The figure below shows two blocks connected by a string of negligible mass passing over a frictionless pulley. m1 = 7.2 kg and ? = 12.0½. Assume that the incline is smooth. (a) For what value of m2 will the system be in equilibrium? m2 = ______ kg (b) If the block has to slide down the incline with an acceleration of 1.0 m/s2, what should be the value of m2? m2 = ______ kg

Explanation / Answer

As we do not have a drawing, I'm going to guess that m1 rests on a smooth slope of 12

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