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Problem
Problem
A bob is suspended from a crane by a cable of length
l
=
5
m
l = 5 \text{ m}
l
=
5
m
. The crane and load are moving at a constant speed
v
0
v_0
v
0
. The crane is stopped by a bumper and the bob on the cable swings out an angle of
60
∘
60^\circ
6
0
∘
. Find the initial speed
v
0
v_0
v
0
. (
g
=
9.8
m/s
2
g = 9.8 \text{ m/s}^2
g
=
9.8
m/s
2
)
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