1. When tossed upward and hit horizontally by a batter, a 0.21-kilogram softball receives an impulse of 2.90 N.s. With what horizontal speed does the ball leave the bat? m/s 2. A 2.10-kilogram mud ball drops from rest at a height of 14.0 m. If the impact between the ball and the ground lasts 0.63 s, what is the magnitude of the average force exerted by the ball on the ground? N 3. The great white shark can have a mass as great as 3100 kg. Suppose such a shark is cruising the ocean when it spots a meal; a 195 kg fish heading east at 8.80 m/s. The shark rushes north at 4.00 m/s and swallows the prey at once. What is the speed of the shark immediately after the snack? m/s 4. You (66 kg mass) skate on ice at 4 m/s to greet your friend (74 kg mass), who is standing still, with open arms. As you collide head-on, while holding each other, with what speed do you both move off together? m/s 5. An 32 g rifle bullet traveling at 330 m/s buries itself in a 5.4 kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Determine the maximum vertical displacement of the pendulum (height). (g = 9.8 m/s2) meters 6. A 16 g bullet traveling at 495 m/s strikes a 1.2 kg block of wood that is balanced on a table edge 0.9 m above ground (see figure). If the bullet buries itself in the block, find the distance D at which the block hits the floor. m7. A hockey puck of mass 0.41 kg is shot east at 2.90 m/s strikes a second puck, initially at rest, of mass 0.55 kg. As a result of the collision, the first puck is deflected at an angle of 36 south of east, with a speed of 1.25 m/s. What is the angle made between the direction of the second puck and the east direction after the collision? O 8. The drawing shows a collision between two small balls. Ball (1) has a mass of 130 g and is moving along the x-axis with a velocity of 4.80 m/s. It makes a collision with ball (2), which has a mass of 195 g and is initially at rest. After the collision, the two balls fly apart with angles as shown in the gure below (a = 58 and B = 50). What is the magnitude of the velocity of ball (2) after the collision? m/s 9. An object (A) of mass m1 = 29.5 kg is moving in a direction that makes angle of 46 south of west with a speed v,. = 5.05 m/s, while object (B) of mass m3 = 18.0 kg is moving due north with a speed VB = 7.95 m/s. The two objects collide and stick together in a completely inelastic collision. Find the magnitude of the final velocity of the two-object system after the collision. m/s 10. An explosion breaks a 27.0-kg object into three parts. The object is initially moving at a velocity of 24.0 m/s due south. Part (1) has a mass m1 = 4.60-kg and a velocity of 56.0 m/s clue west. Part (2) has has a mass m2 = 4.90-kg and a velocity of 73.0 m/s due north. What is the magnitude of the velocity of part (3)? m/s