A cleaner is pushing an 11 kg dustbin across a level floor at constant speed. The coefficient of friction between the dustbin and the floor is 0.10. (a)If the cleaner is pushing horizontally, what is the magnitude of the force he exerts on the dustbin? (b)If he pushes at an angle of 30° down from the horizontal, what must the magnitude of his pushing force be to keep the can moving at constant speed?

Q: 5.6 kg desk is being pushed along a classroom at a constant speed of 0.5 m/s. If a force of 34 N is…

A:

Q: An object of mass 4 kg originally suspended by a vertical cord is pulled by a horizontal force until…

A: Write the given data. m=4 kg In this case, if system is at rest then the tension in cord will be…

Q: A 250-kg crate is on a rough ramp, inclined at 30° above the horizontal. The coefficient of kinetic…

A: Given data: The mass of the crate is M=250 kg. The angle of inclination of the ramp from horizontal…

Q: A person pushes horizontally with a force of 160 N on a 55.0 kg crate to move it across a level…

A:

Q: A 15-kg sled is pulled across a horizontal, snow covered surface by a force applied to a rope at 30…

A:

Q: You must push a crate across a floor to a docking bay. The crate weighs 194 N. The coefficient of…

A:

Q: A 19 kg box is being pushed uniformly across a horizontal surface with which the coefficient of…

A: Draw the free-body diagram of the box.

Q: On a rough surface you want to pull a heavy object of 125 kg, if the coefficient of friction is µk =…

A:

Q: You must push a crate across a floor to a docking bay. The crate weighs 165 N. The coefficient of…

A: a) The magnitude of the force that must be applied on the crate on the verge of sliding must be…

Q: A worker pushes horizontally on a 35 kg crate with a force of magnitude 110 N.The coefficient of…

A:

Q: A box of banana weighing 40.0 N rests on a horizontal surface. The coefficient of static friction…

A:

Q: A flatbed truck is carrying a 20-kg crate up a sloping road. The coefficient of static friction…

A: Mass of crate =20 kgcoefficient of static friction between the crate and the bed is 0.40,coefficient…

Q: a girl is pulling her 6.8kg wagon along a horizontal sidewalk. the force exerted by the girl is 17 N…

A:

Q: A flatbed truck is carrying a 30-kg crate up a sloping road at a constant speed. The coefficient of…

A:

Q: A man has to push his boat on the shore across the mud to get to the water. The coefficient of…

A: The force of friction is given by  F = μ N where, N is the normal reaction and μ is the coefficient…

Q: A horizontal force of 800 N is needed to overcome the force of static friction between a level floor…

A: The magnitude of horizontal force F=800 N The mass of the crate m=200 kg The acceleration due to…

Q: A man is walking up a hill inclined at 24 degrees at constant speed while pulling a 23.6 kg box by a…

A:

Q: A man exerts a northward force of 100 newtons on a 50 kilogram box which sits on a level floor. If…

A:

Q: A worker pulls a 15-kg crate in a straight line on a level surface by imparting a horizontal tension…

A:

Q: You must push a crate across a floor to a docking bay. The crate weighs 183 N. The coefficient of…

A: The weight of the crate is The coefficient of static friction, The coefficient of kinetic friction,

Q: A 10-lb block B rests as shown on a 20-lb bracket A. The coefficients of friction are μs= 0.30 and…

A: In order for the block B not to slide , the frictional force acting between block A and B , that is…

Q: A horse pulls a box of mass M = 55 kg across a rough horizontal surface by applying a horizontal…

A:

Q: A 2.03 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book…

A: Force(F) needed to keep the book at constant speed should be equal to the force of kinetic friction.…

Q: You are pulling a 72-kg box at a constant speed of 7.4 m/s. If you're pulling the rope with a force…

A: Mass of the box,m= 72 kg Speed of box,v=7.4 m/s Force on the rope,F=300 N at an angle,θ=37°

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: