College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A rope is run through a frictionless pulley and then attached to a 16 kg block as shown. The other end of the rope is then pulled at a 45 deg angle to keep the block suspended in the air. What force, F, is required to keep the block suspended motionless? M N 1450 Farrow_forward1. A car of mass 1000.0 kg is stationary on a slope forming an angle = 20° with the horizontal line. The car is located at a distance of 50 m from the foot of the slope. The coefficient of static friction between the tires and the road is μ = 0.20. a. Draw a free-body-diagram of the problem including all the information that is provided. b. Will the car slide down the slope? Motivate your answer to obtain any points. Once the car starts sliding down the slope, the coefficient of dynamic friction becomes μ = 0.15. c. Calculate the acceleration of the car. d. Calculate the velocity of the car at the foot of the slope. e. Calculate the kinetic energy of the car at the beginning and at the end of the motion. f. Calculate the total work done on the car. g. Calculate the gravitational potential energy of the car at the beginning and at the end of the motion. h. Calculate the work done on the car by the gravitational force. i. Calculate the work done on the car by the frictional force.arrow_forwardThere are two images, one has the question information and the other is the question.arrow_forward
- In the figure provided, a 265 kg crate, to the right of the pulley, is released from rest and begins to fall to the ground. If the mass on the left is m = 140. kg, what is the magnitude of the tension of the rope attached to the 265 kg crate? Assume the rope and pulley are massless. select correct answer. a) 898 Nb) 2.60×103 Nc) 1.80×103 Nd) 1.37×103 Narrow_forwardDon't use chat gpt Itarrow_forward5. A block of weight w = 100 N is suspended from a rope tied to two other ropes at point O. One rope is horizontally attached to a wall and the other is fastened to the ceiling. The angle between ceiling and the rope is 60°. Assume the weights of the ropes and the knot are negligible. Calculate the tension in each rope (T₁, T2, and T3). I T2 0 T3 W 60° Earrow_forward
- A loudspeaker of mass 16.0 kg is suspended a distance of h= 2.00 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of I = 3.30 m. (Figure 1) Part A What is the tension T in each of the cables? Use 9.80 m/s for the magnitude of the acceleration due to gravity. T = Submit Request Answer Figurearrow_forwardYou need to push a couch 4 m to the other side of the room. After the initial push to get it going you push on the 90kg couch with a steady horizontal force of 600 N. The coefficient of kinetic friction between the couch and the floor is 0.6. 1. What is the magnitude and direction of the frictional force on the couch? 2. What is the magnitude and direction of the net force on the couch? 3. What is the magnitude and direction of the acceleration of the couch?arrow_forwardI Review Part A Find the tension in the string connecting mj and m2. Assume the table is frictionless and the masses move freely. (Figure 1) Express your answer using two significant figures. Υ ΑΣΦ T = Submit Request Answer Figure 1 of 1 Part B m, = 1.0 kg m2 = 2.0 kg Find the tension in the string connecting m2 and m3. Express your answer using two significant figures. m, = 3.0 kg 0 ΑΣφ T2 = Pearsonarrow_forward1. A man pulls a crate with a rope. The crate slides along the floor in the horizontal direction (x direction). The man exerts a force of 50 N on the rope, and the rope is at an angle . Describe how the force components change as the angle increases from 0° to 90° and use your graph to explain your answer. Give a detailed explanation of the forces at 0 = 0°,45°, and 90°. Show a sample calculation at one angle for both components.arrow_forwardA block of mass 3.7 kg is stationary on a horizontal surface. The coefficient of static friction, µg= 0.25. Calculate the magnitude of the maximum possible static friction force, in N, which can be generated, if an external force is applied to the block. Use 2 s.f. in your answer. L. FN +X F f. W = mgarrow_forwardCalculate the magnitude of a normal force on a 22.7 kg block in the following circumstances. a. the block is resting on a level surface. b. the block is resting on a surface tilted up at 40.8 degrees with respect to the horizontal. c. the block is resting on the floor of an elevator that is accelerating upward at 2.53 m.s^2 d. the block is on the level surface and a force of 115 N is exerted on it at an angle of 40.8 degrees below the horizontal.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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