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

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.

15

ı need answer and solution way please

1. Parcels are moved via conveyor with velocity vo down to a colinear incline that is static at point A where sliding begins. The parcels eventually fall off at point B, which is 7.0 m past A. If the coefficient of kinetic friction on the incline is 0.40, find the velocity of the conveyor belt, vo, such that the parcels have zero velocity at point B. 7m 15°

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?

The 544g collar is free to slide on the smooth rod OA. The rod rotates about pin O at constant angular velocity, é. a =en + še, = a = RÔ?e, + RÖe, for a circular path, R = radius 2.1 Use N-T coordinates, draw a FBD and a kinetic diagram to determine the minimum value of é for which the collar will maintain contact with the stop at A throughout the rotation. 2.2 Would friction between the collar and the rod affect your result in 2.1?