10_24_Impulse - forces are constant during this time. Show...

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Physics 211 10/24 HW Handout Name_______________________ Fall 2002 Impulse Due Monday 10/28 1) A 3 kg crate falls into a snowdrift arriving at the surface of the snow with a velocity of 10 m/s. a) Find the impulse (magnitude and direction) that the net force puts on the crate as it comes to rest in the snow. Show all your work. b) Find the net force (magnitude and direction) on the crate if the time the crate takes after first touching the snow to come to rest is 0.25 s. Assume all the forces are constant during this time. Show your reasoning. c) Find the force (magnitude and direction) the snow puts on the crate. Assume all the
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Unformatted text preview: forces are constant during this time. Show your reasoning. Draw a FBD. d) How far does the crate penetrate the snow? Show your reasoning. 2) Now the crate is dropped from a height four times higher than before. a) Find the impulse (magnitude and direction) that the net force puts on the crate as it comes to rest in the snow. Show your reasoning. b) Assume all the forces on the crate are the same as you found in part 1b. How much time does the crate take to come to rest now? Show your reasoning. c) How far does the crate penetrate the snow in this case? Show your reasoning. 3 kg v = 10 m/s v = 0...
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