Question

You are standing in an elevator that is accelerating upward at 2 m/s2. What is the normal force acting on you by the elevator if your mass is 70 kg?

Answer 1

784 N.

Step-by-step explanation:

The expression for the Normal reaction acting on a body inside an elevator that is moving upward is given as

R = m(g+a)................. Equation 1

Where R = normal reaction, g = acceleration due to gravity, a = acceleration, m = mass .

Given: m = 70 kg, a = 2 m/s²

Constant: g = 9.8 m/s²

Substitute into equation 1

R = 70(2+9.2)

R = 70(11.2)

R = 784 N.

Hence the normal force = 784 N.