9 A crane lifts a car vertically. The car is inside a crate which is raised by the crane by means of a strong cable. The cable can withstand a maximum tension of 9500 N without breaking. The crate has a mass of 55 kg and the car has a mass of 830 kg .
- Find the maximum acceleration with which the crate and car can be raised.
- Show on a clearly labelled diagram the forces acting on the crate while it is in motion.
- Determine the magnitude of the reaction force between the crate and the car when they are ascending with maximum acceleration.