MOMENTUM TAKS QUESTIONS SPRING 2003 – 11: (27) A ball moving at 30 m/s has a momentum of 15 kg·m/s. The mass of the ball is — A 45 kg B 15 kg C 2.0 kg D* 0.5 kg APRIL 2004 – 10: 3 Which bike rider has the greatest momentum? A* A 40 kg person riding at 45 km/h B A 50 kg person riding at 35 km/h C A 60 kg person riding at 25 km/h D A 70 kg person riding at 15 km/h OCTOBER 2005 – 11: 41 A 0.500 kg ball with a speed of 4.0 m/s strikes a stationary 1.0 kg target. If momentum is conserved, what is the total momentum of the ball and target after the collision? A 0.0 kgm/s B 0.5 kgm/s C 1.0 kgm/s D* 2.0 kgm/s OCTOBER 2005 – 11: 50 The table contains data for two wrecking balls being used to demolish a building. What is the difference in momentum between the two wrecking balls? F 300 kgm/s G 200 kgm/s H 150 kgm/s J* 0 kgm/s FEBRUARY 2006 – 11: 26 The 500 g cart is moving in a straight line at a constant speed of 2 m/s. Which of the following must the 250 g toy car have in order to maintain the same momentum as the cart? F An acceleration of 5 m/s2 for 2 seconds G A potential energy of 20 J H* A constant velocity of 4 m/s J An applied force of 5 N for 5 seconds JULY 2006 – 11: 20 The pictures show how an air bag functions in a collision. How much momentum in kg m/s does the air bag absorb from the crash-test dummy if all the crash-test dummy’s momentum is absorbed by the air bag? Record and bubble in your answer to the nearest whole number on the answer document. Ans: 630 JULY 2006 – 11: 53 A 0.50 kg ball with a speed of 4.0 m/s strikes a stationary 1.0 kg target. If momentum is conserved, what is the total momentum of the ball and target after the collision? A 0.0 kgm/s B 0.5 kgm/s C 1.0 kgm/s D* 2.0 kgm/s