The figure shows two blocks that are connected by a cord that passes over a frictionless pulley. The cord and the pulley have negligible mass. The block of mass m1 is on a rough surface and the block of mass m2 hangs from the pulley. How many forces act on each object? 4 forces on object 1 and 2 forces on object 2 1 force on object 1 and 2 forces on object 2 4 forces on object 1 and 1 force on object 2 2 forces on object 1 and 1 force on object 2 2 forces on object 1 and 2 forces on object 2

Two blocks A and B with mA = 1.1 kg and mB = 0.88 kg are connected by a string of negligible mass. They rest on a frictionless horizontal surface. You pull on block A with a horizontal force of 6.7 N. How will the tension in the string be affected if mA is decreased?

A 1140 N crate is resting on a table connected to a 200 N block through a frictionless pulley system as shown. Friction between the crate and the table is enough to keep the system at rest. The arrows show the forces that act on the crate and the block. Determine the magnitude of each force. Friction crate Weightcrate= Normal crate= Weightblock Tensionblock Tension crate Friction crate = N crate Normalcrate= Weightcrate= unit unit unit unit unit unit Tensionerate N N N Tensionblock= Weightblock= N N

In the figure, two blocks are connected over a pulley. The mass of block A is 14.0 kg and the coefficient of kinetic friction between A and the incline is 0.140. Angle 0 of the incline is 42.0°. Block A slides down the incline at constant speed. What is the mass of block B? Frictionless, massless pulley A B Number i Units

Sammy is doing a strength testing session on the turf in preparation for the upcoming basketball season.  Sammy's mass is 55 kg and she is trying to push a 105 kg sled across the artificial turf outside on Raymond Field.  The coefficient of static friction between the sled and the turf is 0.3.  If Sammy pushes only horizontally against the sled, how much force must she push with to just initiate movement of the sled? (hint: be sure to follow the steps outlined for free body diagrams, including drawing the free body diagram with all forces, force equations in the X and Y direction, and a coordinate system)

Mary applies a force of 71 N to push a box with an acceleration of 0.41 m/s². When she increases the pushing force to 76 N, the box's acceleration changes to 0.65 m/s². There is a constant friction force present between the floor and the box. (a) What is the mass of the box in kilograms? kg (b) What is the coefficient of kinetic friction between the floor and the box?

A 28.0-kg block is connected to an empty 2.60-kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.47 and the coefficient of kinetic friction between the table and the block is 0.26. Sand is gradually added to the bucket until the system just begins to move. Ignore mass of cord. Calculate the mass of sand added to the bucket and acceleration of the system.

A pack of four velociraptors have caught a human running through their jungle. Each raptor grabs one limb and pulls as hard as it can. One raptor exerts a force of 50.0 N at an angle of 20.0 ̊. Another exerts a force of 30.0 N at an angle of 130.0 ̊, while a third exerts a force of 90.0 N at 160.0 ̊. If the meal remains stationary, i.e. the total force is 0, at what angle and with what force is the fourth raptor pulling? Note that force is a vector. Force is measured in units called Newtons which is abbreviated N.

An Atwood machine consists of two masses hanging from the ends of a rope that passes over a pulley. The masses have the values ?1=27.0 kgm1=27.0 kg and ?2=16.0 kg.m2=16.0 kg. Assume that the rope and pulley are massless and that there is no friction in the pulley. What is the magnitude of the tension ?T in the rope?

Three forces act on an object as shown. The mass of the object is 10kg. Determine: The x and y components of the net force The magnitude and direction (angle) of the net force The x and y components of the acceleration The magnitude and direction (angle) of the acceleration