term test 1 mcA

# term test 1 mcA - 1 Please insert A as the answer to the...

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1) Please insert A as the answer to the first question. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Solve the problem. Disregard air resistance. 2) A ball is thrown straight upward with a velocity of 39 m/s. How much time passes before the ball strikes the ground? A) 2.4 s B) 8.0 s C) 4.0 s D) 1.2 sE ) 1 1 s 3) A package is dropped from a helicopter moving upward at 15 m/s. If it takes 16.0 s before the package strikes the ground, how high above the ground was the package when it was released? A) 1200 mB ) 0 m C) 810 m D) 1000 m E) 1500 m 4) At the same moment, one rock is dropped and one is thrown downward with an initial velocity of 10 m/s from the top of a 300 m building. How much earlier does the thrown rock strike the ground? A) 0.85 s B) 0.95 s C) 0.66 s D) They land at exactly the same time. E) The thrown rock lands later. 5) The wheel on a bike has an angular velocity of 54 rad/s when the brakes are appiled and the bike comes to a rest in 1.5 seconds. How many revolutions does it rotate before stopping?

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term test 1 mcA - 1 Please insert A as the answer to the...

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