A driver has a mass of 60 kg and drives a go-kart at 20 m/s.
The go-kart has a mass of 90 kg.
What is the total kinetic energy of the driver and the go-kart?
Use the equation: kinetic energy=12×mass×(speed)2\displaystyle \text{kinetic energy} = \frac{1}{2} \times \text{mass} \times (\text{speed})^2kinetic energy=21×mass×(speed)2
1500 J1500\text{ J}1500 J
12000 J12000\text{ J}12000 J
30000 J30000\text{ J}30000 J
60000 J60000\text{ J}60000 J
27 exam-style questions on OCR GCSE Physics Physics on the move. Each one has a worked solution and a mark scheme showing where the marks go.