A 5.0-kg mass sits on the floor of an elevator that has a downward acceleration of 1.0 m/s
2. 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 2If 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