a. speed. b. acceleration. c. momentum. d. velocity.
3. Which of the following has the greatest momentum?
a. A tractor with a mass of 2,350 kilograms moving at a velocity of 26 m/sec b. A boat with a mass of 1,310 kilograms moving at a velocity of 53 m/sec c. A truck with a mass of 6,220 kilograms moving at a velocity of 11 m/sec d. A car with a mass of 1,440 kilograms moving at a velocity of 39 m/sec
4. You throw a basketball forward while standing on a skateboard. This causes:
a. forward motion of the board and you. b. backward motion of the board and you. c. no change in motion. d. forward motion of the board and backward motion by you.
5. A billiard ball collides with a second ball and stops. The total momentum of the billiard balls:
a. increases. b. decreases. c. remains the same. d. becomes zero.
6. What is the momentum of a 30-kilogram cart moving at a speed of 10 meters per second?
a. 3 kg·m/sec b. 20 kg·m/sec c. 40 kg·m/sec d. 300 kg·m/sec
7. The unit used to measure linear momentum is:
a. kg·m/sec b. kg·m/sec² c. J/sec d. n/sec