three blocks of masses m1= 1.0 kg, m2= 2.0kg, and m3=3.0kg are on a frictionless plane and are connected by massless ropes a horizontal force F is applied to the right to obtain an acceleration of 1.5m/s^2 what is the magnitude of the net force of the blocks

A sleigh is being pulled horizontally by a train of horses at a constant speed of 8.05 m/s. The magnitude of the normal force exerted by the snow-covered ground on the sleigh is 6.37 103 N. a. If the coefficient of kinetic friction between the sleigh and the ground is 0.23, what is the magnitude of the kinetic friction force experienced by the sleigh? b. If the only other horizontal force exerted on the sleigh is due to the horses pulling the sleigh, what must be the magnitude of this force?

A force F is applied to a block to move it up a θ = 27° inclined frictionless surface. If F = 72 Newton, and M =4.2 kg, what is the magnitude of the acceleration of the block?

A 6.2 kg object is pulled along a horizontal surface by a force of 22.0 N.  If the acceleration of the objects is 1.1 m/s^2, what is the coefficient of friction between the surfaces?

Two masses are connected by a string which passes over a pulley with negligible mass and friction. One mass hangs vertically and one mass slides on a 30.0 degree frictionless incline. The vertically hanging mass is 3.00 kg and the mass on the incline is 6.00 kg. The magnitude of the acceleration of the 3.00 kg mass is

A man is trying to push a 75.0 kg rock across the ground by applying a constant force P at an angle θ = 27.5 ̊ below the horizontal. The coefficients of friction between the rock and the ground are μk = 0.430 and μs = 0.570. (a) If the rock is initially at rest, what force does the man need to apply to get it to start moving? (b) If the rock is already in motion, what force does he need to apply to get it accelerate at 2.75 m/s2?

Two blocks are connected by a string that goes over an ideal pulley as shown in the figure. The blocks have masses mA=3.88 kg and mp=4.93 kg and the angle 0=49°. The coefficient of kinetic friction between block A and the plane is 0.457. Find the common magnitude of the blocks' accelerations. a MA m/s² MB

You are pushing a wooden crate against a rubber floor. The two surfaces have a static coefficient of friction of 0.45 and a kinetic coefficient of friction of 0.38. The floor is horizontal, and the crate has a mass of 25.0 kg, and is initially at rest. You are pushing with a horizontal force of 155 N. What is the magnitude of the force of friction in this case? Give your answer in units of N, to three significant figures.

A 129 kg crate is sitting at the top of a ramp, which is inclined at an angle of 20 degrees with respect to the horizontal. Someone gives the crate a quick shove to get it moving, after which it slides down the ramp without any further assistance. The coefficient of kinetic friction between the crate and the ramp is ls = 0.23. What is the magnitude of the acceleration (in m/s?) of the crate?

A chandelier hangs h = 0.56 m down from two chains of equal length. The chains are separated from one another by a length L = 0.55 m at the ceiling. The chandelier has a mass of m = 21 kg. What is the angle, θ in degrees, between one of the chains and the vertical where it contacts the chandelier?  Find the tension, FT in Newtons, in one chain.