The free-rolling ramp has a weight of 135 lb The crate whose weight is 72 lb slides from rest at A , 15ft down the ramp to B. The ramps is also at rest when the crate is at A. Assume that the ramp is smooth, and neglect the mass of the wheels.
basicall the picture looks like this:
there's a ramp in a triangle shape with two wheels on bottom.
the crate is sitting on top of triangle which is A. It will slide to B which is at bottom.
the angle can be found out from a 3-4-5 triangle
As the crate (C) travels from point A to point B on the ramp (R). Which of the following statements are true?
Pick all correct answers.
A) The velocity of the crate is at 36.9 from the horizontal.
B)Energy of the crate is conserved.
C)Energy of the ramp is conserved.
D)Energy of the system of (crate+ramp) is conserved.
E)Momentum of the system of (crate+ramp) is conserved in all directions.
F) Momentum of the system of (crate+ramp) is not conserved in all directions, but is conserved in at least one direction
i think it's A, D, and F. am i correct
1 answer
2 answers