Question

1- A block of mass m = 12.5kg is pushed across a ground surface by the applied force F = 75.0N. F ? = 30° 12.5kg a) In this first part, assume that there is no friction between the block and the ground. Draw a free body diagram showing the external forces acting on the block. Calculate the acceleration of the block and the normal force acting on the block. b) Assume now that the block experiences a friction force f = 35.2N with the ground. What is the kinetic friction coefficient between the block and the ground surface?

          1- A block of mass m = 12.5kg is pushed across a ground surface by the applied force F = 75.0N. 

F

? = 30°

12.5kg

a) In this first part, assume that there is no friction between the block and the ground. Draw a free body diagram showing the external forces acting on the block. Calculate the acceleration of the block and the normal force acting on the block.

b) Assume now that the block experiences a friction force f = 35.2N with the ground. What is the kinetic friction coefficient between the block and the ground surface?

1- A block of mass m = 12.5kg is pushed across a ground surface by the applied force F = 75.0N.

F

? = 30°

12.5kg

a) In this first part, assume that there is no friction between the block and the ground. Draw a free body diagram showing the external forces acting on the block. Calculate the acceleration of the block and the normal force acting on the block.

b) Assume now that the block experiences a friction force f = 35.2N with the ground. What is the kinetic friction coefficient between the block and the ground surface?

Added by Consuelo W.

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