Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 5, Problem 85P
(a)
To determine
To Find:The frictional force acting on the coin.
(b)
To determine
To Find:The coefficient of static friction between the corn and the turntable.
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A 45 kg box is at rest at one end of a 2 meter board. That end of the board is slowly raised at an incline until the box starts to slide. At that point, the angle is at 34 degrees. The coefficient of kinetic friction is 0.50N. Please help me calculate the coefficient of static friction between both the box and the board?
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Chapter 5 Solutions
Physics for Scientists and Engineers
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- A man standing on the ground exerts a horizontal force of 439 N when pushing on his friend standing on the skateboard.If the friend’s mass is 70 kg, the skateboard’s mass is 2 kg, and the coefficient of static friction between the friend’sfeet and the skateboard is 0.8, calculate the magnitude of the force of static friction between the skateboard and thefriend’s feet. You can assume that the wheels on the skateboard are good enough so that you can neglect frictionbetween the wheels and the ground.arrow_forwardI 00LLJ408 - Go.. Question Info and Solutions Blocks A and B of mass 5 kg and 10 kg respectively are placed on a Smooth inclined plane of Inclination 30, as shown. Block A and B are subjected to forces 5 N And 50 N respectively along the incline, as shown. The coefficient of friction between A andBis 0.50 find the frictional force between A and B in N is: (g= 10 ms SOH 300 Options Solution Fs=Static frictional force umg cos 30 (0.5) (5) (10) cos 30 21.6 N Let a be the acceleration of both the blocks along 5.27 PMarrow_forwardThe FedEx and UPS boxes have almost reached the top of the inclined plane they have been moving along and are now arrangedThe UPS box has a mass of 3.0 kg, and the FedEx box has a mass of 1.0 kg. The inclined plane is frictionless;however, the horizontal floor has coefficients of static and kinetic friction of 0.5 and 0.2. The pulley is frictionless, and the massesof the pulley and cord are negligible. Answer the following about this system. a.What is the size of the normal force on the UPS box?b. This system will begin to move if released from rest. However, if youpressed with a downward force on the FedEx box, this system could remain at rest.What size force is required? Your solution should include two free-body diagrams.c. If the system was set into motion down the ramp, without the forcementioned in the previous part, what would be the acceleration of the system? Yoursolution should include two free-body diagrams.arrow_forward
- How much sand (in kgs) is needed to be added into the can in order to overcome friction from the table? The box and the can weighs 3.5 kg and 0.5 kg, respectively and the coefficient of static friction between the box and the table is 0.35. Assume the pulley is frictionless.arrow_forwardA car making a turn on a dry, banked highway ramp is experiencing friction. The angle of the bank is 40 degrees and the radius of turn is 78 m, what is the coefficient of static friction between the tires and the road if a 1350 kg car safely turn at 45m/s?arrow_forwardA box A of mass M (M = 29kg) is positioned as shown. The coefficient of static friction between the box and the inclined surface is 0.15 and between the rope and the pulley is 0.10. Determine the amount of force P (in Newtons) that must be exerted to cause the box to impend up the inclined surface.arrow_forward
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