A man lifts a 20.0-kg bucket of concrete from the ground up to ...

[lb_gilbert]

A man lifts a 20.0-kg bucket of concrete from the ground up to the top of a 30.0-m tall building. The bucket is initially at rest, but is traveling at 4.0 m/s when it reaches the top of the building.
 
  How much work was done by the man in lifting the bucket? A)
 
  5.88 kJ
 
  B)
 
  600 J
 
  C)
 
  760 J
 
  D)
 
  6.04 kJ
 
  E)
 
  160 J

Question 2

What is the conversion factor between km/ h2 and m/ s2?
 
  A)
 
  7.72  10-5 (m/ s2)/(km/ h2 )
  B)
 
  2.78  10-1 (m/ s2)/(km/ h2 )
  C)
 
  1.30  104 (m/ s2)/(km/ h2 )
  D)
 
  3.60 (m/ s2)/(km/ h2 )
  E)
 
  16.7 (m/ s2)/(km/ h2 )

[hugthug12]

Answer to Question 1

D

Answer to Question 2

A

[lb_gilbert]

Thank you!

[hugthug12]

Always glad to help...