A 150-N crate is being pulled up a perfectly smooth ramp that ...

[charchew]

A 150-N crate is being pulled up a perfectly smooth ramp that slopes upward at 15 by a pull that is directed at 30 above the surface of the ramp.
 
  What is the magnitude of the pull required to make the crate move up the ramp at a constant velocity of 1.75 m/s?

Question 2

How fast (in terms of the speed of light) should a moving clock travel if it is to be observed by a stationary observer as running at one-half its normal rate?
 
  What will be an ideal response?

[flexer1n1]

Answer to Question 1

45 N

Answer to Question 2

0.866c

[charchew]

TYSM

[at]

Thanks for the timely response, appreciate it