exam 1 sp07

exam 1 sp07 - (25 points The fireman standing on the ladder...

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Name _______________________________________ ENSC 2123 Exam 1 Spring 2007 1. (25 points) A ball having a mass of 4 kg and negligible size moves within a smooth (frictionless) vertical circular slot. If the ball is released from rest when θ = 10 degrees, determine the force of the slot on the ball when the ball arrives at point A ( θ = 90 degrees).

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Name _______________________________________ 2. (25 points) If block B has an initial downward velocity of 3 meters per second when t = 0 seconds, determine the distance block B has traveled when t = 2 seconds.
Name _______________________________________ 3.

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Unformatted text preview: (25 points) The fireman standing on the ladder directs the flow of water from his hose to the fire on the wall at B. Water leaves the end of the hose at point A at a speed of 55 feet per second, and at an angle of θ = 15 degrees downward. Determine the distance from the end of the hose to the wall. Name _______________________________________ 4. (25 points) A particle moves in the slot as shown below. The angle θ is increasing at a constant rate of 0.70 radians per second. Determine the particle speed and the magnitude of the particle’s acceleration when θ = 30 degrees...
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exam 1 sp07 - (25 points The fireman standing on the ladder...

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