Question

A solar-powered car has a kinetic energy of 110250 J. Its mass is 180 kg. Work out how fast the car is travelling

Answer 1

Speed = 126 km/h

Step-by-step explanation:

Given:

Wk = 110250 J - Kinetic energy of the car

m = 180 kg - Mass

________________

V - ? Speed

Wk = m·V² / 2

V = √ (2·W/m)

V = √ (2·110250 / 180) = 35 m/s or V ≈ 126 km/h