\f'7'... . _-.-- Powwow; 1-3, prim lbw lull-en's) of A LL carrwt-onuwem in the, am We owl: W- 'l . One ofyaur clmmnm taken a broom and git/cc a bowling ball a brlzfpmb. A W \"linol- Ilia ouch. which ol' the followlng forces .ct on the bowling hall? A, the force arm.- [with B. a normal force C. Martin D. the force crummy 2, Which of lhc following dmribcc the motion of the bowling. ball after I'm\": Pub, Wham the broom lo no lower in contact wllb the ball? A, The hull moves at consign: speed. 13. The hull ows down gradually lo a mop. C. 711:: ha]! continues at comment speed for a while, then slows down. D. The ball accelerates constantly. Quostlons 3 - 5 refer to the diagram below. A student attaches a string to a wheeled can and pulls with constant force on the string. i B i f\". 3, Which ofthc following forces act on the can? A. tension force B. normal force C. inertia D. Force of gravity 4. Which of the following describes the motion of the cart while it is pulled with a constant force across the table? The cart A. moves at constant speed. B. slows down gradually to a stop. _ C. speeds up for a bit, then moves at celutgnt'sg.ee__ . ,- D. accelerates constantly. I \f27. A gas-ke chicken egg falls to the ground, hitting the ground at 20.0 m/s. CALCULATE the net force on the egg if it is brought to rest in 0. 10 seconds. 28. Small rockets are used to make tiny adjustments in the speed of satellites. CALCULATE the amount of time a rocket (that produces 25 N of thrust force) should be fired to CHANGE the velocity of a 6000 kg spacecraft by +0.7 m/s. 29. A 5-kg ball moving at 8 m/s strikes a stationary 85-kg skateboarder on the chest, after which the hall bounces back at 2.0 m/s. a. Complete the momentum conservation diagram below: initial final mass/object/velocity mass/object/velocity . 0 Momentum conservation equation: b. CALCULATE the skateboarder's velocity immediately after the ball bounces off his chest."-equ Impulses. because impu se Em When the net force acting on a system of objects is zero, A. the momentum ofeach object remains the same. B. the total momentum of the system remains the same. C. the total momentum of the system remains the same if all collisions are elats . D. 15. If it is known that a nonzero net force is acting on an object, then which ofthe must be true about the object's motion? A. The object is at rest. B. The object is moving with a constant velocity. C. The object is accelerating. D. The object is at equilibrium. 16. A tennis ball and a solid steel ball of the same diameter are dropped at the same ball has the greater amount of force acting on it? A. The tennis ball B. The steel ball C. They both have the same amount of force acting on them.