Question

Problem 1

A11kg block starts
from rest at 22m
height and slides
down a frictionless

semicircular track.Block
collides with 50 kg
stationary object at
the bottom of
the

track, if objects
stick together after
collision. What is the
maximum height block-

object system could
reach?

i)Draw a sketch of
the collision

ii)Write expression for
initial energy of
the falling block

iii)Write final energy
of falling block

iv)Set the expressions
equal and solve for
velocity

v)Write the expression
of momentum before
collision

vi)Write the expression
of momentum after
collision and equate tem.

vii)Find final velocity
of the system after
collision

viii)Write the expression
of energy of the
system just after
collision

ix)Write the expression
of the energy of
the block –object
system after it

rises to a height
(system stops for a
moment at this
height and then

starts falling back)

x)Equate these energies
to solve for the
height it
rises to before
falling

back again.

Answer #1

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