College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A 15 kg box rests on a horizontal surface attached to a 5 kg box as shown below.
Determine the acceleration of the system and the tension of the rope.
- μs = 0.4
- μk = 0.35
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- 4.A basket of food weighing 500 N is suspended at the end of a uniform rod 3.5 m long of mass 4.0 kg. A cable is connected to the center of the rod and has an angle 40 degrees with respect to the horizontal. A bear of mass 220 kg walks on the rod and tries to reach the food basket. a) Draw a free body diagram of the rod. b) If the maximum tension of the cable is 3800 N, where is the bear on the rod when the cable breaks? c) find the force that the wall on the rod right before the cable breaks. wall K 40⁰ Cable bear [/// & food basketarrow_forwardTwo masses, m, = 2.16 kg and m, = 9.71 kg are on a horizontal frictionless surface and they are connected together with a rope as shown in the figure. The rope will snap if the tension in it exceeds 50.0 N. What is the maximum value of the force F which can be applied? Submit Answer Tries 0/10 What is the acceleration of the whole system, when this maximum force is applied? 4.212m/s 2 Submit Answer Incorrect. Tries 1/10 Previous Triesarrow_forward5. The system below includes 3 blocks of masses m₁ = 1 Kg, m2 = 2 Kg and m3 = 5 Kg linked by massless and frictionless strings and pulleys. m Share Dinit Pulley m₂ m; Pulley a) Find the magnitude of the tension of the string between m₁ and m2. b) Find the magnitude of the tension of the string between m2 and m3.arrow_forward
- 7. A mass m₁ = 5.00 kg is connected by a light string that passes over a pulley of mass m3 = 8.0 kg to a mass m2 8.50 kg sliding on a frictionless inclined surface that makes an angle of 23° with the horizontal (see figure). The coefficient of kinetic friction between the mass m₁ and the horizontal surface is 0.19. There is no slippage between the string and the pulley. What is the magnitude of the acceleration of the system? (The moment of inertia of the pulley is 1/2Mr².) m/s² m₂ m3 = m₁arrow_forwardQ4) The Great Valerio is performing his high wire act. He stands on a (massless wire) exactly in the middle of two posts a distance d = 50.1 m apart. The wire buckles under his weight and he ends up h = 1.25 m below the vertical location where %3D the wire is attached to the posts. Valerio has a mass of my= = 73.5 kg. What is the tension of the wire ? h d/2 d/2 Earrow_forwardPGF A 3.60 kg mass is being rotated in the vertical plane at a constant speed of 5.00 m/s at the end of a 1.80 m - long string as shown below. Assuming the mass's speed is the same in all three positions, determine the magnitudes of string tension and total acceleration for the three positions. Draw a FBD of the mass for all three postions as part of your solution. 20 Position 1: Tension= X Acceleration = Position 2: Tension x Acceleration Position 3: Tension X Accelerationarrow_forward
- The distance between two telephone poles is 44.0 m. When a 1.00-kg bird lands on the telephone wire midway between the poles, the wire sags 0.180 m. Draw a free-body diagram of the bird. How much tension does the bird produce in the wire? Ignore the weight of the wire.arrow_forwardTwo blocks are connected as shown. Their masses are m1 = 6.12 kg and m2 = 4.95 kg. The tabletop supporting Block 1 is frictionless. The masses for all strings and all pulleys in this problem are negligible. The friction in the pulleys is also negligible. Note the magnitude of the acceleration of mass m1 is twice that of mass m2 because of the way strings are connected to the two masses. 1. Calculate the magnitude of the acceleration in m/s2 for Block 2? 2. Calculate the magnitude of the tension (in Newtons) in the string attached to Block 1?arrow_forward
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