Question

Can you please work each part of this question and show complete work? Trying to understand each step and all concepts for exam.

4. Seefigures below. A mass m = 15 kg is released from rest at the top of a frictionless inclined plane a height h above a frictionless horizontal surface (left figure). It slides down the incline onto the surface, where it has a velocity v = 7 m/s (middle figure) The incline angle is 25° with respect to the horizontal. The mass moved to the left at v = 7 m/s until it collides with a second mass m 20 kg, initially at rest. The two masses STICK TOGETHER (the collision is inelastic) and move off to the left with velocity V (right figure) v'=0 ← v = 7 m/s h=22 Top of incline Bottom of incline, before collision After collision a. Compute the kinetic energy and the momentum of the first mass after it gets to the b. Compute the gravitational potential energy and the height h at the starting point of c. Compute the velocity V1 the first mass had when it was a height y = 0.25 m above d. Compute the momentum of the two masses after they collide and stick together bottom of the incline (middle figure) the first mass at the top of the incline (left figure) the bottom of the incline (part of the way between the left and middle figures) (right figure). Compute their velocity V and their kinetic energy. Was kinetic energy conserved in this collision? Explain (in complete, grammatically correct English sentences!) Compute the normal force between the first mass and the incline as the mass slides down the incline (NOTE: Answers which state that the normal force is equal & opposite to the weight will receive ZERO credit!) e.

Answer 1

Gven date Vexo mis asc fnclined angle (e) Second may (Ap) "The 200 -m, nelic neg

Answer 2

Momentum = p= m0% ISX7 = 5 kg mls bottom nghご247-5 367547.5 267.5-_ 와5m

Net force per bench eudor Ceso N= 132-23N