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1. A 2.40~kilogram mud ball drops from rest at a height of 13.0 m. If the impact between the bail and the ground lasts 0.50 5, what is the magnitude of the average force exerted by the bail on the ground? ' N 2. The great white shark can have a mass as great as 3400 kg. Suppose such a shark is cruising the ocean when it spots a meal: a 190 kg sh heading east at 7.40 m/s. The shark rushes north at 4.00 m/s and swallows the prey at once. At what angle 6 with respect to the east direction will the shark be moving immediately after the snack? , _: degrees 3. A 1570-kilogram truck moving with a speed of 23.0 m/s runs Into the rear end of a 1070-kilogram stationary car. If the collision is completely Inelastic, how much kinetic energy is lost in the collision? ' J 4. TWO balls with masses of 2.40 kg and 5.80 kg travel toward each other at speeds of 10.0 m/s and 4.00 m/s, respectively. If the balls have a head-on inelastic collision and the 2.40-kilogram bail recoils with a speed of 8.00 m/s, how much kinetic energy is lost in the collision? ' L \"__# ' _ J 5. An 38 g rie bullet traveling at 310 m/L buries itself in a 4.4 kg pendulum hanging on a 2.6 m long string, whid't makes the pendulum swing upward in an arc. Determine the maximum vertical displacement of the pendulum (height).(g = 9.8 m/sz) A .'H ~ meters 6. A cue ball traveling at 0.80 m/s hits the stationary 8-ball, which moves off with a s peed of 0.27 m/s at al angle of 33 relative to the cue ball's initial directlon. Assuming that the balls have equal masses and the collision is lnelastlc, what will be the speed of the cue ball? i , m/s 7. A billiard ball is shot west at 2.50 m/s. A second, identical billiard ball is shot east at 1.20 m/s. The balls has a glancing collision, not a head-on-collision, deflecting the second ball by 90 and sending it north at 1.65 m/s. What is the angle that the velocity of the rst ball makes after the collision, with respect to the west direction? l 0 K 8. An object (A) of mass mA = 30.5 kg ls moving in a direction that makes angle of 42 north of east with a speed VA = 5.15 m/s, while object (B) of mass m3 = 18.0 kg is moving due north with a speed VB = 7.85 m/s. The two objects collide and stick together in a completely inelastic collision. Find the magnitude of the final velocity of the twoobject system after the collision. m/s 9. An explosion breaks a 33.0-kg object into three parts. The object is initially moving at a velocity of 23.0 m/s due north. Part (1) has a mass m1 = 4.50-er and a velocity of 61.0 m/s due west. Part (2) has a mass m; = 4.90kg and a velocity of 71.0 m/s due south. Find the direction of the velocity of part (3). north of east 10. A small ball of mass m1 = 0.280 kg is moving at a speed of 3.10 m/s. It strikes a stationary larger ball of mass m3 = 0.500 kg. After the collision, the balls follow the path shown in the figure, where oz = 25.0\" and ,6 = S7.0. What is the magnitude of the velocity of the larger ball after the collision? (Negiect friction and rotational motion.) m/s