Car $P$ has kinetic energy $240\text{ kJ}$. Car $Q$ has half the mass and twice the speed of car $P$. What is the kinetic energy of car $Q$?
- A$120\text{ kJ}$
- B$240\text{ kJ}$
- C$480\text{ kJ}$
- D$960\text{ kJ}$
Physics 9702 · AS & A Level · Gravitational potential energy and kinetic energy
Car $P$ has kinetic energy $240\text{ kJ}$. Car $Q$ has half the mass and twice the speed of car $P$. What is the kinetic energy of car $Q$?