An automated transport pod of mass 45 kg45\text{ kg}45 kg is being tested on a straight, level magnetic track in a cleanroom.
During a test run:
(i) The pod's forward electromagnetic propulsion force is 240 N240\text{ N}240 N and the resistive drag force is 240 N240\text{ N}240 N. Describe the motion of the transport pod.
(ii) Explain what happens to the motion of the transport pod if its forward propulsion force increases to 310 N310\text{ N}310 N but the resistive drag force remains constant.
The transport pod travels from its loading bay to a station at the opposite end of the straight track at a constant speed. Upon reaching the station, it instantly reverses and travels back to the loading bay at the same constant speed, repeating this shuttle cycle several times.
(i) Which displacement–time graph shows the transport pod travelling to the end of the track and back several times?
(ii) Which velocity–time graph shows the transport pod travelling to the end of the track and back several times?
The transport pod has a mass of 45 kg45\text{ kg}45 kg. Calculate its weight. Set up and use the equation: weight=mass×gravitational field strength\text{weight} = \text{mass} \times \text{gravitational field strength}weight=mass×gravitational field strength.