A boy and a girl are balanced on a massless seesaw. The boy has a ...

[folubunmi]

A boy and a girl are balanced on a massless seesaw. The boy has a mass of 60 kg and the girl's mass is 50 kg. If the boy sits 1.5 m from the pivot point on one side of the seesaw, where must the girl sit on the other side for equilibrium?
 
  A) 3.0 m
  B) 1.3 m
  C) 2.5 m
  D) 1.8 m
  E) 1.2 m

Question 2

Particles of matter and antimatter have the
 
  A) same charge and mass
  B) same charge but different mass
  C) different charge and mass
  D) same mass but opposite charge

[yuyiding]

Answer to Question 1

D

Answer to Question 2

D

[folubunmi]

Excellent

[xthemafja]

Gracias!