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Question

ile Edit View History Bookmarks Window Help Session masteringphysicscom PH221 304, spring 17 Problem 240 13 of 14 Inext Problem 240 Part A Acartraveling at 120 km/h strikes a tee, The what was the magnitude ore average acceleration of te diver during the collison? Express the answer in terms of where 1.00 9B0 front end of the car compresses and the driver comes to rest after traveling 090 m Express your answer using two significant figures. 8000 Mr Answers up Incorrect TryAgain:27 attempts remaining Whomework helplquestions-and-answershcar-traveling-120-m-h-strikes-tree front-end car compresses driver comes-rest-traveling-0-q133626111trackid-55d21gwelstacks

Explanation / Answer

initial velocity, u = 120 km/h = 120/3.6 = 33.33 m/s

d = 0.90 m

v = 0

Applying v^2 - u^2 = 2 a d

d = - 33.33^2 / (2 x 0.9) = 617 m/s^2

d (in g) = 617 / 9.80 = 63 g

Ans: 63

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