contestada


A man has a mass of 90 kg. While standing in an elevator that is accelerating downwards at
1.5 m/s/2, what is the apparent weight of the man?

A. 1017.9 N
B. 45 N
C. 747.9 N
D. 882.9 N

Respuesta :

Answer:

R = 747 N

Explanation:

Given that,

Mass of a man = 90 kg

The elevator is accelerating downwards at 1.5 m/s².

We need to find the apparent weight of the man. When the lift is coming in downward direction, the apparent weight is given by :

R = m(g-a)

Putting all the values,

R = 90(9.8-1.5)

R = 747 N

Hence, the correct option is (c).