A man drags an m kg crate across a floor by pulling on a rope inclined at angle `theta` above the horizontal. If the coefficient of static friction between the floor and crate is then the tension required in the rope to start the crate moving is :

A 68 kg crate is dragged across a floor by pulling on a rope attached to the crate and inclined 15^(@) above the horizontal. (a) If the coefficient of static friction is 0.50, what minimum force magnitude is required from the rope to start the crate moving? (b) If mu_(k)=0.35 , what is the magnitude of the initial acceleration of the crate?

A crate is pulled along a horizontal surface at constant velocity by an applied force F that makes an angle theta with the horizontal. The coefficient of kinetic friction between the crate and the surface is mu . Find the angle theta such that the applied force is minimum to slide the block. Also find the minimum value of this force.

In an industry a 300 kg crate is dropped vertically from a packing mechine onto a conveyor belt moving at 1.2 m//s The coefficient of kinetic friction between belt and crate is 0.4 After a short time, slipping between the belt and the crate ceases and the crate then moves along with the crate ceases and the crate then moves along with the belt . For the period of time during which the crate is being brought to rest relative to the belt, calculate, for a reference frame (a) the kinetic energy supplied to the crate (b) the magnitude of the kinetic frictional force acting on the crate, the magnitude of energy supplied by the motion (c) Why are the answers to (a) and (c) different

A body of mass m kept on the floor of a lift moving downwards is pulled horizontally. If mu is the coefficient of friction between the surface in contact, then

In the figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle theta with the horizontal floor. The coefficient of friction between the wall and the ladder is mu_1 and that between the floor and the ladder is mu_2. the normal reaction of the wall on the ladder is N_1 and that of the floor is N_2. if the ladder is about to slip. than

In the figure, a ladder of mass m is shown leaning against a wall. It is in static equilibrium making an angle theta with the horizontal floor. The coefficient of friction between the wall and the ladder is mu_1 and that between the floor and the ladder is mu_2. the normal reaction of the wall on the ladder is N_1 and that of the floor is N_2. if the ladder is about to slip. than

A rope of length L and mass M is being pulled on a rough horizontal floor by a contact horizontal force F = m g . The force is acting at one end of the rope in the same direction as the length of the rope. The coefficient of kinetic friction between rope and floor is 1//2 . Then the tension at the midpoint of the rope is

A rope of length L and mass M is being pulled on a rought horizontal floor by a contact horizontal force F = m g . The force is acting at one end of the rope in the same direction as the length of the rop. The coefficient of kinetic friction between rope and floor is 1//2 . Then the tension at the midpoint of the rop is

A box, heavier than you is placed on a rough floor. The coefficient of static friction between the box and the floor is the same as that between your shoes and the floor. Can you displace the box across.the floor.