What is the cosine of 55? A) 0.6 B) 0.57 C) 0.574 D) 0.5736 ...

[urbanoutfitters]

What is the cosine of 55?
 
  A) 0.6
  B) 0.57
  C) 0.574
  D) 0.5736
  E) 0.57360

Question 2

A mountain climber of mass 60. kg slips and falls a distance of 4.0 m, at which time he reaches the end of his elastic safety rope. The rope then stretches an additional 2.0 m before the climber comes to rest.
 
  What is the spring constant of the rope, assuming it obeys Hooke's law?

[HandsomeMarc]

Answer to Question 1

B

Answer to Question 2

1.8 kN/m

[urbanoutfitters]

Thanks for the timely response, appreciate it

[xiaomengxian]

Excellent