A 70 kg man enters a lift and stands an a weighing scale inside it. At time t = 0, the lift starts moving up and stops at a higher floor at t = 9.0 s. During the course of this journey, the weighing scale records his weight and given a plot of his weight vs time. The plot is shown in the fig. [Take `g = 10 m//s^(2)`]
(a) Find `F_(0)`
(b) Find the magnitude of maximum acceleration of the lift.
(c) Find maximum speed acquired by the lift.

Answer

(a) 93.3 N
(b) `(10)/(7) m//s^(2)`
(c) 4m/s