A 2.00-m long uniform beam of mass 4.00 kg rests on a fulcrum ...

[mpobi80]

A 2.00-m long uniform beam of mass 4.00 kg rests on a fulcrum that is 1.20 m from one end when a 3.00-kg mass rests on that end
 
  and a 8.00-kg mass is placed at another location on the beam. How far from the end at which the 3.00-kg mass is placed is the location of the 8.00-kg mass?
  A)
 
  1.45 m
 
  B)
 
  1.75 m
 
  C)
 
  1.35 m
 
  D)
 
  1.55 m
 
  E)
 
  1.65 m

Question 2

Impulse is a quantity that is equal to force multiplied by time. If the dimensions of force are MLT-2, what are the dimensions of impulse?
 
  A)
 
  MLT-3
  B)
 
  ML2T
  C)
 
  ML2T-2
  D)
 
  MLT-1
  E)
 
  ML

[janieazgirl]

Answer to Question 1

B

Answer to Question 2

D