A 7.0 kg object is resting on a plane that is inclined at 12° to the horizontal. Determine the magnitude of the frictional force acting on the object. Round your answer to the nearest tenth. 0.0 N 6.8 N 84 N 14.3 N 67.1 N
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- A wagon is being pulled with a force of 140 N, so that the handle makes an angle of 30° with the horizontal. The force of friction between the wheels of the wagon and the ground is 52 N. What is the vertical component of the net force acting on the wagon? Round your answer to the nearest tenth. 69.2 N [backward] 88.0 [backward] 0.0 N 88.0 [forward] 69.2 N [forward]Calculate 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.The 8-kg block A is attached to link AC and rests on the 12-kg block B. Knowing that the coefficient of static friction is 0.2 between all surfaces of contact and neglecting the mass of the link. с OA B Draw the FBD(s) for block A and block B. -50 N
- A block slides on a surface when two forces act on it as shown in the figure. The two forces acting on it each have magnitude F = 50.0 N and M = 20.0 kg, and coefficient of kinetic friction is 0.20. a. Find the net force in the vertical direction b. Find the net force in the horizontal direction c. What is the magnitude of the resulting acceleration of the block? 30° M2. A two body system is set up on an inclined surface with M = 5 kg and m = 4 kg. The angle is 25 degrees. And the static frictional coefficient is 0.25, and kinetic frictional coefficient is 0.20. i. Find the parallel and perpendicular components of the Mg. ii. Find the static frictional force and kinetic frictional force. iii. Determine which way the system will move, uphill or downhill. iv. Once it starts, find the tension T =? v. Once it starts, find the acceleration, a=?A mass m is being pushed by a horizontal force F of magnitude 209.0 N. The coefficient of kinetic friction between the two surfaces is 0.4. What is the magnitude of the acceleration of this mass as it gets to be pushed up the ramp?
- 30° P 20° A 30 kg package is at rest on an inclined plane when a force P is applied to it. Determine the magnitude of said force (in Newtons) if 15 s are required for the package to travel 7.5 m up the inclined plane. The coefficients of static and kinetic friction between the package and the inclined plane are equal to 0.3A 37 N block rests on an inclined plane with a slope of 25°. What is the normal force acting on the block?1O C A cart for hauling ore out of a gold mine has a mass of 439 kg , including its load. The cart runs along a straight stretch of B Track track that climbs a shallow 4.75° incline. A donkey, which is Rope trudging along and to the side of the track, has the unenviable job of pulling the cart up the slope with a 441 N force for a distance of 185 m by means of a rope that is parallel to the slope but makes an angle of 14.5° with the track. A „Track incline Model the rolling resistance of the cart as though it were Horizontal ground sliding on the track with a coefficient of friction of 0.0163. Use g = 9.81 m/s, and note that angle A in the image is the angle of the incline while angle B is the angle the rope makes %3D with the track. Find the work Wa that the donkey performs on the cart during this process. %3D Find the work W, that the force of gravity performs on the cart during this process. = "M Calculate the work W done on the cart by friction during this process. 87