A 5.0-kg mass sits on the floor of an elevator that has a ...

[sam.t96]

A 5.0-kg mass sits on the floor of an elevator that has a downward acceleration of 1.0 m/s². On top of the 5.0-kg mass is an object of unknown mass. The force of the elevator on the 5.0-kg mass is 80 N up. Determine the unknown mass.
   
  a.
  3.3 kg
   
  b.
  2.4 kg
   
  c.
  1.6 kg
   
  d.
  4.1 kg
   
  e.
  5.0 kg

Question 2

If M = 2.2 kg, what is the tension in the connecting string? The pulley and all surfaces are frictionless.
 
   

   
  a.
  6.4 N
   
  b.
  5.9 N
   
  c.
  5.4 N
   
  d.
  6.9 N
   
  e.
  8.3 N

[millet]

Answer to Question 1

d

Answer to Question 2

c

[sam.t96]

Thanks for the timely response, appreciate it

[ricroger]

Gracias!