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.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.
- 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?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.