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Unformatted text preview: straight upward, the cannonball just the reaches the top of the cliff. (10 pts) a) Calculate the initial speed of the cannonball. b) Suppose a second cannon is placed at the top of the cliff and fired horizontally with the same initial speed as part (a). Prove numerically that the range of this cannon is the same as the maximum range of the cannon from the base of the cliff. 4 4. You drive a car 1200 m due south for 20 min, then 1500 m at 30 west of south for 30 min, and finally 1050 m at 50 north of west for 40 min. ( 15 pts ) a. Sketch the three displacement vectors and the resultant displacement vector on an xy coordinate system. b. Calculate the resultant displacement vector in unitvector notation for the entire trip. c. Calculate the magnitude and direction of the resultant displacement vector. d. Calculate the average speed of the car for the entire trip. e. Calculate the average velocity in unitvector notation of the car for the entire trip....
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 Spring '11
 Luna
 Physics, Work, Velocity, Cannon, initial speed, entire trip, resultant displacement, unitvector notation

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