Question

A man (mass = 50 kg) is in an elevator with is moving with acceleration 0.49 m/s2 upwards. Find normal reaction exerted by man on floor of the elevator

• A. 214.5 N
• B. 314.5 N
• C. 414.5 N
• D. 514.5 N

Answer 1

Answer: (D)

514.5 N

Answer 2

N - mg = ma N - (50 $\times$ 9.8) = (50 $\times$ 0.49) N = 514.5 Newton