Aforce held against an objects creates

by Newton's laws, it can create 2 things.

Acceleration: by the second Newton law; we have that F = m*a

where F is force, m is mass of the object and a is the acceleration of the object, so when you held a force in an object, you are accelerating the object.

By the third law, when you apply a force in an object, the object is applying a force equal in magnitude and in the opposite direction on you, so when you held a force against an object, the object "creates" another force.

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