Practice_Q6_2

# Practice_Q6_2 - vector => magnitude and direction b What...

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Practice Quiz 6 Physics 7B Winter 2010 Feb. 17, 2010 A 0.5 kg ball is dropped from a height of 2 m above the ground. The ball rebounds straight upwards to a height of 1.2 m. a) Consider conservation of energy ( PE=mg h, KE=(1/2)mv 2 ). What is the velocity of the ball prior to impact with the ground (remember velocity is
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Unformatted text preview: vector => magnitude and direction)? b) What is the velocity of the ball immediately after rebounding from the floor (height is just an infinitesimal amount above the ground)? c) What is the impulse imparted from the floor on the ball during the collision?...
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