A 50.0-kg box rests on a horizontal surface. The coefficient of ...

[cabate]

A 50.0-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.300 and the coefficient of kinetic friction is 0.200. What is the friction force on the box if
 
  (a) a horizontal 140-N push is applied to it?
  (b) a horizontal 175-N push is applied to it?
 
  What will be an ideal response?

Question 2

In a shuffleboard game, the puck slides a total of before coming to rest. If the coefficient of kinetic friction between the puck and the horizontal board is 0.28, what was the initial speed of the puck?
 
  A) 8.1 m/s
  B) 29.0 m/s
  C) 6.5 m/s
  D) 7.3 m/s

[robbielu01]

Answer to Question 1

Answer: (a) 140 N (b) 98.0 N

Answer to Question 2

Answer: A

[cabate]

Excellent

[ghepp]

Thanks for the timely response, appreciate it