7. A ball of mass m is suspended from the ceiling with the help of an elastic
ford. An additional downward force applied on the ball
, if increased
gradually to a value Fo, the cord would break. What should be the
additional minimum constant force F that will break the cord?
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The correct answer is F = 1/2 (F₀ - mg)
m= mass of the ball
g= acceleration due to gravity
F + mg = Fo - F
F = 1/2 (F₀ - mg)
The equation also indicates the weight of the object (W=mg).
The major feature of this force is that all objects fall at the same rate.
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