# 3 F8 8. L. F5 9. K. 08 F3 5. %24 T. 4. H. R. comm E. i B. esc 1. D. C. tab caps lock command option shift control WCLN.ca With what is force , F, that is acting to pull on the foot and keep the leg under tension? Construct a vector diagram to assist with your solution. WCLN.ca PHYSICS 12 *Two masses are placed on different smooth (frictionless) ramps and connected together with a rope (of negligible mass) as shown below. 4. 09, Label all of the forces present on this diagram. Ultimately what two forces must balance each other to keep these masses from moving (the answer may be a component(s) of a force). i. ii. Determine the mass of the box on the right to keep this system in translational equilibrium. 5. A leg is placed in traction to keep it elevated and prevent it from moving as shown: Small pulley What is the tension in the rope (recall: 30.0° one rope gliding through pulleys will have the same tension throughout)? m 3 2.50 kg 221-01-08

# 3 F8 8. L. F5 9. K. 08 F3 5. %24 T. 4. H. R. comm E. i B. esc 1. D. C. tab caps lock command option shift control WCLN.ca With what is force , F, that is acting to pull on the foot and keep the leg under tension? Construct a vector diagram to assist with your solution. WCLN.ca PHYSICS 12 *Two masses are placed on different smooth (frictionless) ramps and connected together with a rope (of negligible mass) as shown below. 4. 09, Label all of the forces present on this diagram. Ultimately what two forces must balance each other to keep these masses from moving (the answer may be a component(s) of a force). i. ii. Determine the mass of the box on the right to keep this system in translational equilibrium. 5. A leg is placed in traction to keep it elevated and prevent it from moving as shown: Small pulley What is the tension in the rope (recall: 30.0° one rope gliding through pulleys will have the same tension throughout)? m 3 2.50 kg 221-01-08

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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d. 69.90 m a. 6.12 m C. 18.36 m b. 12.24 m 20. What weight will a spring scale read for a mass of a 60 kg woman stand on it in an elevator that moves downward with an acceleration of 6.0 m/s ? a. 984 N b. 588 N C. 786 N d. 228 N 11. A wheel 7.0 m in radius accelerates uniformly from 120 rad/min to 360 rad/min in 2.9 s. What is the angular acceleration? a. 2.26 rad/s^2 b. 6.55 rad/s^2 c. 1.38 rad/s^2 d. 2.76 rad/s^2 12. A person pull a 35 kg block 50 m along over a rough, horizontal surface with Hk = 0.30 a constant force Fp = 150 N, which acts at a 30° above the horizontal floor. If the frictional force is 80 N, what is the total net work done? a. 1433 J b. 11295 J c. 1917 J d. 2495 J 13. A child bounces a 52 g superball on the sidewalk. The velocity of the superball is from 24 m/s downward to 15 m/s upward. If the time contact with the sidewalk is 1.25 ms, what is the magnitude of the average force exerted on the superball on the sidewalk? a. 1622.4 N b. 1398.4 N C. 1248 N d. 374.4 N…
hi please solve this question as soon as possible. i will rate
9. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. Compute the value of the horizontal force P necessary to Just start the block up the incline. A. 822KN B. 832KN C. 842KN D. 852KN
What is the direction of the net force acting on the object at position B? a. to the rightb. to the leftc. downwardd. The net force is zero.
13. You want to push a 7-kg box up a 15° ramp. The coefficient of kinetic friction between the ramp and the box is 0.30. With what magnitude force parallel to the ramp should you push on the box so that it moves up the ramp at a constant speed? 7kg e=15° А. 16.56 N B. 55.56 N C. 37.67 N D. 23.50 N
A force acts at an angle of 52 degrees above the positive x-axis. It has a y-component of 290 N. Find (a) the magnitude and (b) the x-component of the force. Select one: a. 227 N; 290 N b. 227 N; 368 N c. 368 N; 227 N d. 471 N; 371 N
A 200 kg object stay in rest on a 60 degree slope, the normal force on the object is: a. 200 kg b. 1960 N c. 1697 N d. 490 N e. 980 N
Three concurrent forces are pulling the box, the first one pulls 5 N, North; second pulls 5N, South and and the third one pulls 8 N, East. What is the magnitude and direction of their resultant force? a. 18 N, East b. 8 N, West c. 8 N, East d. 3N, West
Five boys are pushing on a snowball ad each is pushing with a force of 12.0.0N. However, each boy is pushing in a different direction. they are pushing north, northeast, east, southeast and south. (each boy is pushing an angle of 45.0 degrees relative to his neighbour.) What is the magnitude of the total force on the ball? a. 0 b. 17.0N c. 29.0N d. 13.4N e. 57.9N
7. Using two ropes, Eric and Arya pull Josh on a skateboard. There is an angle of 35° between Eric and Arya. Eric pulls with a force of 300N and the resultant force is 500N. Determine the angle the resultant force makes with Eric's force. Include a detailed diagram. a. b. With what force is Arya pulling the skateboard?
9. The 500KN is in contact with a 45° inline. The coefficient of static friction is 0.25. Compute the value of the horizontal force P necessary to Just start the block up the incline. A. 822KN B. 832KN C. 842KN D. 852KN
3. 7.00 kg 3.00 kg 7.00 kg What is the force by tension above the single 7kg bucket hanging on the left? A 68.6 N В. 80.7 N C. 40.3 N D. 12.11 N Page 4 I 21 Q +