An engineering team is testing an automated cargo transport system at an industrial depot. A diagram of the system's test track is shown below:
Describe how the vertical height of the elevated storage platform could be measured accurately.
An automated cargo sledge of mass 75 kg75\text{ kg}75 kg descends the inclined guide track, moving through a vertical height of 8.4 m8.4\text{ m}8.4 m. The gravitational field strength is 9.8 N/kg9.8\text{ N/kg}9.8 N/kg. Calculate the change in gravitational potential energy of the cargo sledge. Use the equation: gravitational potential energy=mass×gravitational field strength×height\text{gravitational potential energy} = \text{mass} \times \text{gravitational field strength} \times \text{height}gravitational potential energy=mass×gravitational field strength×height
State three factors that affect the kinetic energy of the cargo sledge as it reaches the bottom of the track.