PHYS-114 [Russell] Test 3 (Winter 08)

# PHYS-114 [Russell] Test 3 (Winter 08) - PHYS-114 Test#3...

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PHYS-114 Test #3 Chapters 9,10,11 Winter 2008 ( Conservation of Momentum and Energy ) Name (please print): _____________________________________ Raw Score: _________ Test Grade: ___________ [1] (8 pts) In an episode of Futurama Professor Farnsworth uses his Smell-O-Scope to detect a gigantic ball of garbage, with a mass of 7.4 × 10 5 kg, that is hurtling towards the earth at a speed of 2400 m/s. Fry saves the day by suggesting that the New New Yorkers create a second huge ball of garbage and launch it towards the first one. If the second garbage ball has a mass of 5.3 × 10 5 what would its velocity have to be in order for it to stick to the first ball and stop, making it come to rest? ( Draw before and after pictures ) [3] (10 pts) Two blocks (m A = 0.6 kg and m B = 0.25 kg) are connected by a string passing over a massless, frictionless pulley. Both blocks are attached to springs, with k A = 44 N/m and k B = 18 N/m. Spring A is initially stretched to the left a

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## This note was uploaded on 04/29/2008 for the course PHYS 114 taught by Professor Masteringphysics during the Winter '08 term at Kettering.

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PHYS-114 [Russell] Test 3 (Winter 08) - PHYS-114 Test#3...

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