The two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effect of friction in the pulleys and knowing that the coefficients 200 lb of friction between the blocks and the inclines are ls = 0.25 and k = 0.2, determine (a) the acceleration of each block, (b) the tension in the cable. 90. 20° 300 lb B

The coefficients of friction between the block and the rail are μs=0.30 and μk =0.25. Knowing that θ=65°, determine the smallest value of P required (a) to start the block moving up the rail, (b) to keep it from moving down.

Please label steps clearly

A 50 Ib block A is attached to a wire that is wrapped around the shown flywheel of 30" radius and I = 12 ft-lb-s². The system is released from the rest. Neglect the effect of friction, determine (a) the acceleration of the block A, (b) the speed of the block A after it has moved 10 ft. A

An object of mass m1 slides on a sloped block of mass M2, which in turn slides on a horizontal surface. The slope angle is a constant 3, and both masses are initially at rest. There is no friction between any of the objects, and the masses are subject to the force of gravity -mgêy. Use as co- ordinates the horizontal position x2 of mass m2, and the height y1 of mass m1, as shown in the y4 Y1 M2 x2 diagram to the right. Find the equation of motion of block 2, ä2(t). The expression should only include expressions involving constants: M2, m1, g, and B.