Assignment #4.pdf - Physics 112 Written Assignment#4 Chapter 4 Dynamics Force and Newtons Laws of Motion(No Friction 1 A small car collides with a large

# Assignment #4.pdf - Physics 112 Written Assignment#4...

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Physics 112 Written Assignment #4 Chapter 4: Dynamics, Force and Newton’s Laws of Motion (No Friction) 1. A small car collides with a large truck. Which experiences the smaller acceleration? Why? a) The car b) The truck c) Both experience the same acceleration d) It depends on the velocity of each 2. You are in the gym, doing squats. There are two external forces acting on your body: 1) The force of gravity pulling you down. 2) The force of the floor pushing up on your feet. a) Draw a free-body diagram for your body while doing squats. b) Are the two forces described above equal and opposite at all times during the squat motion? Explain. c) Are the two forces described above an action-reaction pair? Explain. 3. A 10 kg block sits on a frictionless horizontal surface. A constant force of 35 N is exerted on the block at an angle of 26.0 o as shown and the block moves to the right. a) Draw a free body diagram for the block. b) What is the normal force acting on the block?  #### You've reached the end of your free preview.

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• Fall '16
• terry bridge
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