6. A motor winds the rope in B with a constant acceleration aB. Because of the pulley system, the mass m in A slides in this way to the left over a horizontal axis. Between m and the left end point of the horizontal axis, there is a spring (constant k, unstretched length l6). The coefficient of kinetic friction between m and the axis is µk. When Sa equals 1.5 m, vB equals 6 m/s. For this situation: a) determine at that instant the velocity Va and the acceleration aa of A, b) determine all the forces that apply on A, c) determine the force with which the motor pulls the rope. Data: ав 3 2 m/s2, m = 2 kg, k 150 N/m, l 2 m, µk = 0.3 %3D SA 2 m

Find the rato of masses m1/m2

i asked this before but somone answered wrong and disnt explain. please answer again and explain thanks i will like.

1. A cart is being pulled by a motor. The cart has a mass of m = 200 kg. The motor applies a horizontal force of F = 800 N to the center of the right side of the cart. The cart is 1m tall, the total length is 1.5m, the wheels are 1m apart from each other, and the center of mass G is 0.4 m above the floor and on the horizontal center. Ignore friction. If there is no rotational movement of the cart, determine the following: 1. The cart's acceleration 2. The reaction (normal) force at the front pair of wheels. 3. The reaction (normal) force at the rear pair of wheels. F 77 TI T

4: Find the smallest force P that the worker must apply to the barCD in order to initiate uphill motion of the homogeneous 80-kg spool. Thecoefficients of static friction are 0.12 at A and 0.36 at B. Neglect the weight ofbar CD.

4. Draw the FBD and derive the EOM of the pulley system below with respect to x using Newton's laws. Mass m slides on a rough surface with friction force f. There is no displacement in the spring initially. -Pulley. moment of inertia J,

block C weighs 200lb is lifted by hoisting mechanism. the hoist is wrapped around compound drum B. drum b is rotating as a single unit and weighs 300 lbs. K(bar) is 4ft. a hoist tension (P) is rated 1.0 kips. And its power is being maintained by the power in Motor A. Determine the vertical acceleration of the block C and the resultant force on the bearing at O.

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ı need answer and solution way please

Mary and her sister are playing with a cardboard box on the neighborhood hill. Mary climbs into the box, the total mass of the box with Mary in it is 115 kg. The box starts at rest at the beginning of the incline. The hill is at an incline of 28 degrees with respect to the horizontal.The static and kinectic friction between the box and hill is 0.4 and 0.2 respectively. Assume the box is sliding downhill. a. What is the magnitude of the acceleration of the box? (same as Problem 3b)b. If the hill is 5m tall, what is the Mary's speed when she reaches the bottom?c. At the bottom of the hill, the ground becomes level, but the coefficients offriction do not change. How far will Mary slide before she comes to a stop?