<p> Momentum / Impulse HW 1 HW 3.6 1) A 2250 kg pickup truck has a velocity of 25 m/s in the positive x-direction. What is the momentum of the truck?</p><p>2) What velocity must a car with a mass of 1210 kg have in order to have the same momentum as the pickup truck?</p><p>3) A 18. kg child is riding a 6.0 kg bike with a velocity of 5.0 m/s in the positive x-direction.</p><p> a. What is the total momentum of the child and bike together?</p><p> b. What is the momentum of the child?</p><p> c. What is the momentum of the bike?</p><p>4) A 1400 kg car moving in the negative x-direction with a velocity of 15 m/s collides with a utility pole and is brought to rest in 0.30 sec. Find the magnitude of the force exerted on the car during the collision.</p><p>5) A 0.50 kg object is at rest. A 3.00 N force to the right acts on the object during a time interval of 1.50 sec. What is the velocity of the object at the end of this interval?</p><p>6) A boy stands at one end of a floating raft that is stationary relative to the shore. He then walks in a straight line to the opposite end of the raft, away from the shore.</p><p> a. Does the raft move? Explain your reasoning.</p><p> b. What is the total momentum of the boy and raft before the boy walks across?</p><p> c. What is the total momentum of the boy and raft after the boy walks across? Momentum / Impulse HW 1 HW 3.6</p><p>7) A 63.0 kg astronaut is on a spacewalk when the tether line to the shuttle breaks. The </p><p> astronaut throws their 10.0 kg O2 tank in a direction away from the shuttle at a velocity of 12.0 m/s. Assuming the astronaut is initially at rest, calculate the final velocity of the astronaut after throwing the tank.</p><p>8) A high speed camera photographs the head of a 215 g golf club traveling 55.0 m/s just before it strikes a 46 g golf ball at rest on a tee. After the collision the club travels at 42.0 m/s in the same direction as before. Use the COLM to find the velocity of the golf ball just after impact.</p>