You use a rope to pull a 50.0 kg box 10.0 m up a 30° incline at constant speed. You pull with 351.09 N of force. The coefficient of kinetic friction is μk = 0.25.
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- A 200-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 34.5° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.750 m/s2. Find the tension in the rope.2 A dustbin of mass 12 kg standing on horizontal ground is pushed by a horizontal force of 40 N. If the coefficient of friction is 0.4, will the dustbin move?Q5 A pull of 20 N at 30 ° to the horizontal is necessary to move a block of wood on a horizontal table . If the coefficient of friction between the bodies in contact is 0.25 , what is the weight of the block ?
- A box of mass 12 kg standing on horizontal ground is pushed by a horizontal force of 30 N. If the coefficient of friction is 0.25, will the box move?A 10 kg block is moving on a horizontal table. The coefficient of kinetic friction between them is 0.3. What is the frictional force acting upon the block?A bicycle and rider travelling at 15 km/hr on a level road, have a mass of 100 kg. The brake is applied to the rear wheel which is 800 mm in diameter. The pressure applied on the brake is 90 N and the coefficient of friction is 0.15. Find the distance covered by the bicycle and the number of turns of its wheel before coming to rest.
- A bicycle and rider, travelling at 12 km/hr on a level road, have a mass of 105 kg. A brake is applied to the rear wheel, which is 800 mm in diameter. The pressure force on the brake is 80 N and the coefficient of friction is 0.06. Find the distance covered by the bicycle and the number of turns of its wheel before coming to rest.Q5 A pull of 20N at 30° to the horizontal is necessary to move a block of wood on a horizontal table. If the coefficient of friction between the bodies in contact is 0.25, what is the weight of the block? P sin 30° 30° P cos30° WA 5 kg box on a horizontal table is pushed by a horizontal force of 15 N as shown on the right. If the coefficient of friction is 0.4, will the box move?
- Friction force between a block and horizontal plane depends upon the coefficient of friction between the block and the plane. Justify this statement.A body of mass 30 kg is resting on a horizontal plane. A pull of 80 N is subjected on the body and tends the body to move. Will the body move if coefficient of friction between the body and the plane is 0.3.A bicycle and rider, travelling at 12 km/h on a level road, have a mass of 105 kg. A brake is applied to the rear wheel which is 800 mm in diameter. The pressure on the brake is 80 N and the coefficient of friction is 0.06. Find the distance covered by the bicycle and number of turns of its wheel before coming to rest.