Lift Karadey recreated | Adnan Sami | Black Bird Records

When a lift is moving up with a uniform speed of 1 m/s. the weight of a man recorded bby a weighing machine in the lift is 70 kg . If the lift starts moving down with a uniform speed of 2 m/s, the weight of the man recorded by the weighing machine will be

A man is standing on a weighing machine placed in a lift. When stationary his weight is recorded as 40 kg . If the lift is accelerated upwards with an acceleration of 2m//s^(2) , then the weight recorded in the machine will be (g=10m//s^(2))

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.

A string is wrapped several time on a cylinder of mass M and radius R , the cylinder is pivoted about its axis of symmetery . A block mass of m tied to the string rests on support so that the string is black. The block is lifted upto a height h and the support is removed. (shown in figure) When the string experience a jerk, a large impulsive force is generated for a short duration, so that contribution of weight mg can be neglected suring this duration. then what will be speed of blocks m , just after string has becomes taut

A string is wrapped several time on a cylinder of mass M and radius R , the cylinder is pivoted about its axis of symmetery . A block mass of m tied to the string rests on support so that the string is black. The block is lifted upto a height h and the support is removed. (shown in figure) If M=m , what friction of KE is lost due to the jerk developed in the string

A string is wrapped several time on a cylinder of mass M and radius R , the cylinder is pivoted about its axis of symmetery . A block mass of m tied to the string rests on support so that the string is black. The block is lifted upto a height h and the support is removed. (shown in figure) What is the angular velocity of cylinder just before the string becomes taut