In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.
A crate of mass 80 kg rests on the floor of a lift. The total mass of the lift, including the crate, is 600 kg. The lift is raised by a vertical cable and accelerates upwards at 1.2 m s−2^{-2}−2.
Find the tension in the cable.
Find the normal reaction of the lift floor on the crate.
The cable breaks while the lift is moving upwards. Ignoring air resistance, state the acceleration of the lift and find the normal reaction on the crate immediately after the cable breaks. Explain your answer.