What velocity is needed for a 2400 kg car in order to have the same momentum as the 800 kg car? Required? Substitute and Solve
Velocity = m/s

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

What property of an object determines its inertia?