A 20-N crate starting at rest slides down a rough 5.0-m long ...

[Jipu 123]

A 20-N crate starting at rest slides down a rough 5.0-m long ramp, inclined at 25 with the horizontal. 30 J of energy is lost to friction. What will be the speed of the crate at the bottom of the incline?
 a. 0.98 m/s
  c. 3.5 m/s
  b. 2.1 m/s
  d. 4.7 m/s

Question 2

According to the first law of thermodynamics, for any process that may occur within an isolated system, which of the following choices applies?
 a. entropy remains constant
  c. entropy decreases
  b. entropy increases
  d. None of the above choices apply.

[Bison]

Answer to Question 1

C

Answer to Question 2

D

[Jipu 123]

Both answers were spot on, thank you once again

[Bison]

Great! Please up vote