You pull on a stationary block of mass 150kg with a cord that makes a constant angle of 0.4712rad  ...
You pull on a stationary block of mass 150kg with a cord that makes a constant angle of 0.4712rad as measured up from horizontal. The coefficient of static friction between the block and the floor is 0.79 , and the coefficient of kinetic friction between the block and the floor is 0.35 . If you pull on the stationary block with a constant tension of magnitude 651.2N , how much net work will be done on the block after pulling for 4s ?
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You pull on a stationary block of mass 150kg with a cord that makes a constant angle of 0.4712rad  ...
A block of mass = 50.0 kg is being dragged at a constant velocity across a...
A block of mass = 50.0 kg is being dragged at a constant velocity across a floor by a strong person pulling it with a rope. The rope makes an angle of 300 with the horizontal. The tension in the rope is 50.0 Newtons. Assume a real floor, with friction. What is the coefficient of kinetic friction between the box and the floor?
Block A of mass 10 kg sits on top of Block B of mass 15 kg....
Block A of mass 10 kg sits on top of Block B of mass 15 kg. Block B is being tugged by a force F and Block A is being tugged by a force FA . FA makes an angle ? = 10degrees with the horizontal and is a 7N force. The coefficient of static friction between the two blocks is .01while the coefficient of kinetic friction between the floor and Block B is given as .5(see diagram below). Force...
A block with mass m1 = 8.5 kg is on an incline with an angle θ...
A block with mass m1 = 8.5 kg is on an incline with an angle θ = 25° with respect to the horizontal. For the first question there is no friction between the incline and the block. 1)When there is no friction, what is the magnitude of the acceleration of the block? 2)Now with friction, the acceleration is measured to be only a = 2.74 m/s2. What is the coefficient of kinetic friction between the incline and the block? 3)...
A block of mass m = 2.0 kg is sitting stationary on a table. A horizontal...
A block of mass m = 2.0 kg is sitting stationary on a table. A horizontal force of magnitude F = 5.0 N is applied to the block, as shown. The coefficient of static friction is µS = 0.7, and the coefficient of kinetic friction is µK = 0.5. To the nearest 0.1 N, what is the magnitude of the force of friction between the block and the table?
A block with mass m1 = 8.9 kg is on an incline with an angle θ = 27°
A block with mass m1 = 8.9 kg is on an incline with an angle θ = 27° with respect to the horizontal. For the first question there is no friction between the incline and the block. 1) When there is no friction, what is the magnitude of the acceleration of the block? 2) Now with friction, the acceleration is measured to be only a= 3.38 m/s2. What is the coefficient of kinetic friction between the incline and the block? 3) To keep the...
A block of mass 3.00 kg is pushed against a wall by a force P that makes a 50.0 degree angle with the horizontal....
A block of mass 3.00 kg is pushed against a wall by a force P that makes a 50.0 degree angle with the horizontal. The coefficient of static friction between the block and the wall is 0.250. (a) Determine the possible values for the magnitude of P that allow the block to remain stationary. (b) Describe what happens if absolute value of P has a larger value and what happens if it is smaller. (c) Repeat parts (a) and (b)...
m1 A block with mass my = 9.4 kg is on an incline with an angle...
m1 A block with mass my = 9.4 kg is on an incline with an angle 6 = 33 with respect to the horizontal. For the first question there is no friction between the incline and the block. 1) When there is no friction, what is the magnitude of the acceleration of the block? m/s2 Submit 2) Now with friction, the acceleration is measured to be only a = 3.63 m/s2. What is the coefficient of kinetic friction between the...
A girl is using a rope to pull a mystery box that has a mass of...
A girl is using a rope to pull a mystery box that has a mass of 30.6 kg across a rough level surface. The rope makes an angle with the floor of 30 degrees above the horizontal, and the tension in the rope is 100 N. If the coeficcient of kinetic friction between the box and surface is 0.333, what is the magnitude of kinetic friction force acting on the mystery box?
Block A in the figure has mass mA = 4.20 kg, and block B has mass...
Block A in the figure has mass mA = 4.20 kg, and block B has mass mB = 2.40 kg. The coefficient of kinetic friction between block B and the horizontal plane is μk = 0.520. The inclined plane is frictionless and at angle θ = 34.0°. The pulley serves only to change the direction of the cord connecting the blocks. The cord has negligible mass. Find (a) the tension in the cord and (b) the magnitude of the acceleration...
A 2kg block and an 8kg block are connected by a relaxed horizontal spring with spring-constant...
A 2kg block and an 8kg block are connected by a relaxed horizontal spring with spring-constant 300N/m. You pull the 8kg block with some constant horizontal force. There is a coefficient of kinetic friction between the blocks and the floor of μk = 0.3. After a time, the spring is stretched a certain constant amount, and the system moves with constant velocity. (a) Draw free-body diagrams for both blocks. (b) What pulling force did you apply? (c) How much is...
m1 A block with mass my = 9.4 kg is on an incline with an angle 6 = 33 with respect to the horizontal. For the first question there is no friction between the incline and the block. 1) When there is no friction, what is the magnitude of the acceleration of the block? m/s2 Submit 2) Now with friction, the acceleration is measured to be only a = 3.63 m/s2. What is the coefficient of kinetic friction between the...
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