Three blocks (as shown in the figure) are released from rest and they start to accelerate with a constant magnitude of 0.41 m/s2. Block A has mass M, block B has mass 2.2 M and block C has mass 2.0M. The value of M is not given. What is the coefficient of kinetic friction between the table and block B? The mass and friction in the pulleys can be ignored. k= Pneed A B C

We start with some review problems A crate of mass 20.0 kg rests on a level surface, with a coefficient of kinetic friction 0.219. You push on the crate with an applied force of 297 N. What is the magnitude of the crate s acceleration as it slides?     12.70 m/s^2     14.85 m/s^2     6.35 m/s^2     20.79 m/s^2

A hockey puck slides with an initial speed of 56.7 m/s on a large frozen lake. The coefficient of kinetic friction between the puck and the ice is 0.05. What is the acceleration on the hockey puck caused by friction? Assume the puck's velocity is in the positive-x direction. And what is the speed of the puck after 6 s?

Blocks 1 and 2 are moving to the right on a frictionless surface by the tension TB = 36 N as shown. m1 = 2.0 kg, and m2 = 3.2 kg. What is the magnitude of the acceleration of block 2, in m/s²? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. m₁ TA m₂ TB

A block slides down a 18° incline. The coefficient of kinetic friction between the block and theincline is 0.22. What is the magnitude of the block's acceleration?

We start with some review problems A crate of mass 42.0 kg rests on a level surface, with a coefficient of kinetic friction 0.257. You push on the crate with an applied force of 375 N. What is the magnitude of the crate s acceleration as it slides?     14.29 m/s^2     6.41 m/s^2     8.93 m/s^2     2.56 m/s^2

B In the figure, block A has a mass of 9.06 kg. It rests on a smooth (assume frictionless) horizontal table and is connected by a very light horizontal string over an ideal pulley to block B, which has a mass of 2.80 kg. When block B is gently released from rest, how long does it take block B to travel 76.7 cm? Report your answer in seconds.

A baseball player initially running 8.94 m/s slides 5.26 m to a stop at home plate. What is the coefficient of kinetic friction between his uniform and the ground? Equations: vf2 = vi2 + 2×a×Dx                           F = ma                   fk = mkN                 N = Fg = mg

Two blocks are connected as shown. Their masses are m1 = 6.12 kg and m2 = 4.95 kg. The tabletop supporting Block 1 is frictionless. The masses for all strings and all pulleys in this problem are negligible. The friction in the pulleys is also negligible. Note the magnitude of the acceleration of mass m1 is twice that of mass m2 because of the way strings are connected to the two masses. 1. Calculate the magnitude of the acceleration in m/s2 for Block 2? 2. Calculate the magnitude of the tension (in Newtons) in the string attached to Block 1?