he drawing shows a baggage carousel at an airp around at a constant speed on a circle (r = 10. itcase and the carousel is 0.70, and the angle e m/s
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- You give a 2.10 kg box a hard shove at the bottom of a ramp, and it leaves your hand with a speed of 8.50 m/s. The ramp is inclined at an angle of 30.0o, and the coefficient of kinetic friction between the ramp and the box is 0.300. The box slides up the ramp and eventually stops. What is the magnitude of the acceleration of the box while it is sliding up the ramp? select correct answer. a) 7.45 m/s2b) 7.84 m/s2c) 15.6 m/s2d) 11.5 m/s2In the figure m = 2.0 kg. F = 10.0 N, and the coefficient of kinetic friction between the block and the surface is 0.20. What is the friction force between the block and the surface? F 30° O 3.9 N O 2.9 N 1.9 N O 4.9 NA friction experiment is performed on a planet that has the same mass as Earth but half the radius. A 1.0-kg block is pulled along a horizontal dynamics track with a horizontal force of magnitude 15.0 N. If the coefficient of kinetic friction between the block and the track is 0.3, determine the acceleration of the block. O a. 14.26 m/s^2 O b. 12.06 m/s^2 O. 3.24 m/s^2 Od. 15.00 m/s^2
- 7. A car is right on the verge of sliding as it speeds around a level circular track. The radius of the circular track is 21 m, and the coefficient of static friction between the car's tires and the track is 0.7, while the coefficient of kinetic friction is 0.56. What is the speed of the car?Mazie stands on her kitchen floor. The coefficient of kinetic friction between her socks and the floor is 0.35, and the coefficient of static friction is 0.42. She has a mass of 58 kg. b. Mazie slides across the floor at a speed of 1.3 m/s. What is the force of kinetic friction acting on her? c. Mazie climbs up on the roof of her house, which has an angle of 25°. The coefficient of static friction between her and the roof is 0.35. Will she slip off the roof? Explain your answer. d. Given that μ s = 0.35, what is the maximum angle the roof could have without her slipping?A rope is attached to a box. The box is placed on an inclined plane. The box has a mass of 50 kg. I would like to lower the box downward. I am holding it with a force F equal to 100 N. Ignore friction. The angle θ = 30o A. Does the box move downward or actually stay at rest on the inclined plane? B. Determine the acceleration of the box. C. Friction is present and the coefficient of kinetic friction is 0.2. Determine the new acceleration of the box
- 5. A box can be moved up an inclined plane with constant velocity by a force of magnitude F1 or down the inclined plane with constant velocity by a force of magnitude F2. Find the coefficient of friction u between the box and the inclined plane. It holds that F1 = 6F2 and both forces are parallel with the inclined plane. The angle a between the inclined plane and the horizontal plane is 15°. a a9. In a game of shuffleboard (played on a horizontal surface), a puck is given an initial speed of 6.0 m/s. It slides a distance of 9.0 m before coming to rest. What is the coefficient of kinetic friction between the puck and the surface? 0.20 b. 0,18 a. C. 0.15 d. 0.13 0.27 e. a お hp4. Two blocks, each with a mass of 2.0 kg. The ramp has a horizontal angle of 40 degrees. The friction coefficient between m2 and the horizontal surface is 0.30. The ramp is frictionless. m2 m. a. Determine the acceleration of the system. Hint: drawing a FBD of the combined system may help. b. Determine the tension in the rope connecting the masses. c. Determine the minimum friction coefficient between the ramp and block 2 that would prevent the system from accelerating. (Hint, consider the formula for u, the required additional friction force and the applicable normal force.)
- A car is moving in a circular road ( radius of 56.1 m) with a speed of 12.3 m/s. Find the minimum static friction coefficient between the wheels of the car and the road to keep the car moving without sliding. Select one: O A. 0.275 B. 0.410 O C. 0.324 O D. 0.391 O E. 0.356A 4000 lb automobile is traveling at 68 mph along a highway. The pavement is dry and level. The driver sees an obstruction in the road ahead and hits the brakes very hard. The vehicle is not equipped with anti-lock brakes, and the car begins to skid. The coefficient of kinetic friction between the pavement and the tires is 0.8. How far will the car skid before it comes to a complete stop? V² = V₁² + 2as B D 50 ft 100 ft 200 ft 400 ftThe block shown is pulled across the rough horizontal surface at a constant speed by the force shown. If m=14 kg, F=16, and 0 = 37°, what is the coefficient of kinetic friction between the block and the surface? consider g = 10 m/s2. %3D A. 0.298 B. 0.198 C. 0.09801 D. None E. 0.248