A scooter company gives the following specifications about its product. Weight of the scooter — 95 kg Maximum speed — 60 km/h Maximum engine power — 3.5 hp Pick up time to get the maximum speed — 5 s Check the validity of these specifications.

Question

Philoid · Accepted Answer

Mass of the scooter, m = 95 kg

Maximum speed, v = 60 km/h = 50/3 m/s

Pick up time, t = 5 s

Engine power required to achieve this speed in given time = mv²/2t

= 2638.89 W

= 3.537 hp

This is a little higher than the given maximum power, i.e. 3.50 hp.

∴ An engine of 3.5 hp can not exactly produce 60 km/h speed in 5 s. Hence, these specifications are somewhat over claimed.

A scooter company gives the following specifications about its product.Weight of the scooter — 95 kgMaximum speed — 60 km/hMaximum engine power — 3.5 hpPick up time to get the maximum speed — 5 sCheck the validity of these specifications.

A scooter company gives the following specifications about its product.
Weight of the scooter — 95 kg

Maximum speed — 60 km/h

Maximum engine power — 3.5 hp

Pick up time to get the maximum speed — 5 s

Check the validity of these specifications.