Draw a diagram to show conservation of mechanical energy is case of a free falling body $(A S_{5})$

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Solution

$E = P . E + K . E$
At $A :$ $P . E = m g h$ $K . E = 0 (∵ m = 0)$
$E = m g h + 0 = m g h$
At $B :$ $P . E = m g (h - x)$ $K . E = m g x$
$E = m g h - m h x = m g h$
At $C :$ $P . E = O (∵ h = o)$
$K . E = m g h$
$E = 0 + m g h = m g h$

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Draw a diagram to show conservation of mechanical energy is case of a free falling body (AS5)

E=P.E+K.EAt A: P.E=mgh K.E=0(∵m=0)E=mgh+0=mghAt B: P.E=mg(h−x) K.E=mgxE=mgh−mhx=mghAt C: P.E=O(∵h=o)K.E=mghE=0+mgh=mgh

Draw a diagram to show conservation of mechanical energy is case of a free falling body $(A S_{5})$

$E = P . E + K . E$
At $A :$ $P . E = m g h$ $K . E = 0 (∵ m = 0)$
$E = m g h + 0 = m g h$
At $B :$ $P . E = m g (h - x)$ $K . E = m g x$
$E = m g h - m h x = m g h$
At $C :$ $P . E = O (∵ h = o)$
$K . E = m g h$
$E = 0 + m g h = m g h$