Question

** 4. (20pts)** In the Figure below, a

a) What is their *kinetic energy* just before they strike
the floor? **( 8pts)**

b) How much *energy* was lost due to the collision
between the two boxes? **( 6pts)**

c) At what *horizontal distance* with respect to the edge
of the table do they strike the floor?
**( 6pts)**

**Express first your answers in terms of any or all of the
variables m_{1}, m_{2}, v_{1}, h and g
(acceleration due to gravity), and then their numerical
values.**

Answer #1

a. K= 29 J

b. dE = 5.97 J

c. x = 0.5142 m.

In the figure, a 4.5 kg box of running shoes slides on a
horizontal frictionless table and collides with a 2.8 kg box of
ballet slippers initially at rest on the edge of the table, at
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before the collision. If the two boxes stick together because of
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A halfback with a mass m1 = 95 kg is running up field with a
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velocity v2 = 4.2 m/s. Assume the collision is perfectly
inelastic.
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The figure below shows a mass m1=5.2 kg moving with velocity
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up a frictionless hill of mass of height h=11.1 m. What is the
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K=727 J
K=3879 J
K=2425 J
K=2061 J
K=1576 J

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velocity v1=41.6 m/s which collides with a mass
m2=2.6 kg which is initially at rest. The collision is
completely inelastic and the masses slide up a frictionless hill of
mass of height h=9.8 m. What is the kinetic energy K of the masses
when they reach the top of the hill.
K=655 J
K=3493 J
K=1419 J
K=2183 J
K=1856 J

Two blocks of masses m1 = 1.95 kg and m2 = 3.90 kg are each
released from rest at a height of h = 6.00 m on a frictionless
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1) Consider an object of mass m1 =
0.425 kg moving with a uniform speed of 6.65 m/s on a frictionless
surface. This object makes an elastic head-on collision with
another object of mass m2 = 0.555
kg which is initially at rest. (a) Find the speed of
m1 immediately after collision. (b)
Find the speed of m2 immediately after
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In the figure below, the hanging object has a mass of
m1 = 0.370 kg; the sliding block has a mass of
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