Two blocks, M1 and M2, are connected by a massless string that passes over a massless pulley as shown in the figure. M2, which has a mass of 23.0 kg, rests on a long ramp of angle =31.0∘. Friction can be ignored in this problem. Determine the mass 1 of block M1 for which the two blocks are in equilibrium (no acceleration).
If the actual mass of M1 is 5.00 kg and the system is allowed to move, what is the acceleration of the two blocks? A positive acceleration corresponds to M2 moving up the incline.
What distance does block M2 move in 2.00 s?

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards