Two cars, a and b, are traveling with the same speed of 40.0 m/s, each having started from rest. Car a has a mass of 1200 kg, and car b has a mass of 2000 kg. Compared to the work required to bring car a up to speed, How much additional work is required to bring car b up to speed?

An automobile of mass 2000 kg moving at 30 m/s is braked suddenly with a constant braking force of 10000 n. how far does the car travel before stopping?

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point