Answer: To show that the lorry is below the speed limit, we need to convert the lorry's speed from meters per second to kilometers per hour and compare it to the speed limit.
Given:
Lorry's speed = 13.5 m/s
Speed limit = 50 km/h
To convert the lorry's speed from meters per second (m/s) to kilometers per hour (km/h), we can use the following conversion factor: 1 m/s = 3.6 km/h.
Lorry's speed in km/h = 13.5 m/s * 3.6 km/h
Lorry's speed in km/h = 48.6 km/h
The lorry's speed is 48.6 km/h, which is below the speed limit of 50 km/h.
Therefore, we have shown that the lorry is below the speed limit.