7) The mass m starts from rest at a height H and slides without friction down th

Question

7) The mass m starts from rest at a height H and slides without friction down the incline and collides with a mass 2m, initially at rest, in a totally inelastic collision. How high up the incline vertically will the mass 3m rise after the collision? Express your answer in terms of the givens H and m.

11 +1 D learn.vccs.edu/bbcswebdav/pid-60304535-dt-content-rid-5 11 73060,2 /courses/NV280.PHY.231.003A.FA14/Chapter%208%20Hw.pdf htt bbesweb b) Compare the initial and final kinetic energies. 7) The mass m starts from rest at a height H and slides without friction down the incline and c with a mass 2m, initially at rest, in a totally inelastic collision. How high up the incline vertically mass 3m rise after the collision? Express your answer in terms of the givens H and m. 2m 8) A 1015-kg compact car is traveling north at 15 m/s when it collides with a 2102-kg truc traveling east at 10 m/s. All occupants are wearing seat belts and there are no injuries, b two vehicles are thoroughly tangled and move away from the impact point as one mass. insurance adjuster has asked you to find the velocity of the wreckage just after impact. W you tell him?

Explanation / Answer

u1 = (2gh)^0.5

aftr collision

e =0 = v2-v1
v=v1=v2

momentum equation

m *u1 = m*v + 2m*v

v = u1/3

then height reched by

2m body = H/9

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