You push downward on a box at an angle 25 below the horizontal ...

[KimWrice]

You push downward on a box at an angle 25 below the horizontal with a force of 750 N.
 
  If the box is on a flat horizontal surface for which the coefficient of static friction with the box is 0.76, what is the mass of the heaviest box you will be able to move?
  A) 68 kg B) 54 kg C) 59 kg D) 82 kg

Question 2

Joe and Bill throw identical balls vertically upward. Joe throws his ball with an initial speed twice as high as Bill. The maximum height of Joe's ball will be
 
  A) four times that of Bill's ball.
  B) two times that of Bill's ball.
  C) equal to that of Bill's ball.
  D) eight times that of Bill's ball.
  E) roughly 1.3 times that of Bill's ball.

[katara]

Answer to Question 1

C

Answer to Question 2

A

[KimWrice]

Wow, this really help

[scikid]

Thanks for the timely response, appreciate it