Force as a Function of Time 2. If the momentum of an object is halved and the velocity is tripled, the mass will have changed by a factor of 4.0 six one-sixth 3.0 three-halves two-thirds Force (N) 2.0 1. What is the mass of an automobile that is travelling on the Queen Elizabeth II highway at 110 km/h [N] and has a momentum of 3.85 x 104 kg-m/s [N]? 1.18 x 106 kg 1.0 3.84 x 10* kg 350 kg 1.26 x 103 kg 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 In a movie stunt, a car and a train locon entionally crash. The collision is illustrated Times (s) in the diagram below. The magnitude of the impulse of the object is three-digit answer) N.s. (Record your Your answer: Train track main locomotive m = 3.8 x 10' kg v= 10.0 m/s 4. A 98.4 kg football halfback carries the ball past the line of scrimmage running at 7.02 m/s [N]. He is tackled by an opposing linebacker running toward him at 4.76 m/s [S]. Their combined velocity, after the 0.285 s impact takes both of them off their feet, is 1.02 m/s [N]. Truck Based on the information from the above scenario, the mass of the linebacker is m = 3.0 x 10' kg = 26.7 m/s 137 kg 5. The magnitude of the momentum of the truck-train system immediately before the collision, expressed in scientific notation, is a.b x 10 kg.m/s. You will need to 128 kg record the values of a and b. 94.8 kg The direction of the momentum of the truck -train system immediately before the collision is of ef, North of West. You will need to record the values of e and f. 102 kg The values of a, b, e, and fare answer) (Record all four digits of your 6. A 20.0 kg red curling rock travelling at 0.578 m/s [W] strikes a stationary 20.0 kg yellow curling rock head-on. The collision takes 4.35 x 10"2 s. Immediately after the collision, the yellow rock has a velocity of 0.3365 m/s [54.4' N of W]. Use the information from the above narrative to choose which of the following statements is true. The collision is inelastic with about 3% of the total kinetic energy lost. The collision is inelastic with about 9% of the total kinetic energy lost. Use the following information to answer the next question The collision is inelastic with about 5% of the total kinetic energy lost. Bill, Barry, and a few of their friends decide to go mountain biking in a wilderness area next to the mountains. They take light-weight camping gear so they can explore The collision is elastic. around and have some flexibility. 7. During the trip in the above scenario, one of Bill and Barry's companions puts a can of beef stew in the campfire to heat for supper, neglecting to open it part way to let the steam escape. Predictably, the can explodes and sends 300 g of hot stew west at 5.73 m/s. What impulse will be imparted to the 400 g of the can? 2.30 N'S 4.30 N'S 1.31 N.s 1.72 N'S
