A lift cage of mass is being pulled upward by a cable

PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials

Problem

A lift cage of mass

800\,\text{kg}

is being pulled upward by a cable. A passenger of mass

65\,\text{kg}

stands on the floor of the cage. The lift accelerates uniformly upward at

3.0\,\text{m/s}^2

. Take

g = 9.8\,\text{m/s}^2

. (a) Calculate the tension in the supporting cable. (b) Determine the reading shown by the weighing machine on which the passenger is standing.