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A person pulls a block across a rough horizontal surface at a constant speed by applying...
Phy 1010 -Chapter 4 Questions 1) A person pulls a block across a rough horizontal surface at a constant speed by applying a force F. The arrows correctly indicate the directions, but not necessarily the magnitudes of the forces on the block. Which of the following must be true? b) F> fk and N w c) F fk and N> w d) F> fk and N -W e) None of the above
Block A is pushed across a horizontal surface at a constant speed by a hand that exerts force towards the right. Assume that there is friction between the block and the surface. a. Draw an interaction diagram for the situation. b. Use your interaction diagram to draw two free-body diagrams, one for the hand and the other for the block. c. Rank in order from largest to smallest, the magnitudes of all of the horizontal forces you showed in part...
A woman pulls a block along a horizontal surface at a constant speed with a force of 10 N acting 20 degrees above the horizontal. The block moves and she does 85 J of work. What is the distance, in m, that the block moves?
A solid block of mass 60.0 kg starts from rest and slides down a rough surface with a length of 10.0 m where the coefficient of friction is uk=0.20. The surface is inclined at 40.0°. After sliding 10 meters down the incline it hits a spring with a spring constant of ks = 550.0 N/m. Draw a freebody Diagram indicating all forces. Write out and solve the force and energy equations. How high is the block above the spring at...
Imagine a 4.0-kg wood block sliding across a horizontal table surface with a positive velocity and an acceleration of -2.0 m/s. You need to calculate the coefficient of kinetic friction for these two surfaces. 1. Start the same way you always should whenever you have a question involving forces and accelerations. Draw a free-body diagram (arrows for all the forces, arrow for net force, and a coordinate system) for the block. All the forces, vertical as well as horizontal. 2....