The weight of a body moving downward in an elevator with acceleration a = 0.4 m / s (2) is 624H. What is body weight?

Initial data: a (acceleration of a moving elevator) = 0.4 m / s2; P (body weight during accelerated downward movement of the lift) = 624 N.

Reference data: g (acceleration due to gravity) = 10 m / s2.

With an accelerated downward movement of the body, its weight can be expressed by the formula: P = m * (g – a), whence m = P / (g – a).

Let’s calculate: m = 624 / (10 – 0.4) = 624 / 9.6 = 65 kg.

Answer: Body weight is 65 kilograms.