Conceptual Physics (12th Edition)
12th Edition
ISBN: 9780321909107
Author: Paul G. Hewitt
Publisher: PEARSON
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Chapter 4, Problem 107RCQ
Three identical blocks are pulled, as shown, on a horizontal frictionless surface. If the tension in the rope held by the hand is 30 N, discuss what is the tension in the other ropes.
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Three identical blocks are pulled, as shown, on a horizontal frictionless surface. If tension in the rope held by the hand is 30 N, what is the tension in the other ropes?
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Chapter 4 Solutions
Conceptual Physics (12th Edition)
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- As shown below, the coefficient of kinetic friction between the surface and the larger block is 0.20, and the coefficient of kinetic friction between the surface and the smaller block is 0.30. lf F=10Nand M=1.0kg , what is the tension in the connecting string?arrow_forwardConsider Figure 5.28. The driver attempts to get the car out of the mud by exerting a perpendicular force of 610.0 N, and the distance she pushes in the middle of the rope is 1.00 m while she stands 6.00 m away from the car on the left and 6.00 m away from the tree on the right. What is the tension Tin the rope, and how do you find the answer?arrow_forwardBy what factor does the drag force on a car increase as it goes from 65 to 110 km/h?arrow_forward
- Show that the acceleration of any object down an incline where friction behaves simply (that Is, where fk=kN ) is a=(sinkcos) . Note that the acceleration Is independent of mass and reduces to the expression found in the previous problem when friction becomes negligibly small (k=0) .arrow_forwardIn a television commercial, a small, spherical bead of mass 4.00 g is released from rest at t=0in a bottle of liquid shampoo. The terminal speed is observed to be 2.00 cm/s. Find (a) the value of the constant bin the equation v=mgb(1ebt/m), and (b) the value of the resistive force when the bead reaches terminal speed.arrow_forwardA block of mass m, = 5.30 kg placed on a rough horizontal table is connected to a string that passes over a light frictionless pulley 3.90 kg , as shown in the figure below. The acceleration of the block m, is and then is fastened to a hanging block of mass m, = 2.60 m/s?. (a) Find the tension in the string. T = (b) Find the coefficient of kinetic friction between the block m, and the table. Hk = (c) Assuming that the coefficients of static and kinetic friction between the block m, and the table are equal, find the maximum mass of the block m, for which the system can be at rest. m2 max - kgarrow_forward
- A rope 10 m long is stretched between a tree and a car. A man pulls with a force of 10 N at right angles to ang at the middle of point of the rope and moves this point 0.5m. Assuming no stretching of the rope (theoretical), what is the tension in the rope at the final position?arrow_forwardA man on a wire singing "Man on a Wire" while practicing for his circus show has reached the center of the rope, creating a dip on the center angled at 60.18 degrees. If the mass of the man is 30.03kg and the tension force that can be handled by the wire is 856.18N, would the wire break? Show the tension caused by the man hanging on the wire.arrow_forwardA box of mass 10 kg rests on an inclined plane as shown. The string makes an angle of 25 degrees with the inclined plane. Find the coefficient of friction if it takes a tension force of 79 N to keep the box from sliding.arrow_forward
- A child holds a sled at rest on a frictionless, snow-covered hill, inclined 30° with the horizontal. If the sled and child weighs 77N, find the force exerted on the rope by child and the force exerted on the sled by the hill.arrow_forwardA 2.5 kg toy car is being pulled by a boy using a string that makes an angle of 20 0 with the horizontal. Find the force of friction, if the force exerted on the string is 7 N and the coefficient of friction is 0.5.arrow_forwardA 1-kg bird sits on the middle of a clothesline whose supports are 10 m apart. The clothesline sags by 1 m. If the weight ofthe clothesline is negligible. find the tension on it.arrow_forward
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