Question

A box of mass 3 kg is moving on a horizontal frictionless table and collides with another box of mass 3kg initially at rest on the edge of the table of height 1m. The speed of the moving box just before the collision is 4m/s. The two boxes stick together and fall from table. The kinetic energy just before the boxes strikes the floor is?​

Answer 1

Explanation:

ANSWER

This is a completely inelastic collision, followed by projectile motion. In the collision, we use momentum conservation.

p

shoes

=

p

together

⇒(3.2kg)(3.0m/s)=(5.2kg)

ν

Therefore ,

ν

=1.8m/s toward the right as the combined system is projected from the edge of the table. Next, we can use the projectile motion material from Ch. 4 or the energy techniques of Ch. 8; we choose the latter

I think this will help you........

Answer 2

Answer:

think this is the answer