Question

A bucket falls off a 100m high ledge. The bucket's speed when it is 60 m above the ground is

Answer 1

Speed of the bucket, v = 28 m/s

Explanation:

It is given that,

A bucket falls off a 100 m high ledge. Let v is the speed of the bucket  when it is 60 m above the ground. It can be calculated using the conservation of energy as :

$\dfrac{1}{2}mv^2=mgh$

$v=\sqrt{2gh}$

$v=\sqrt{2\times 9.8\times 40}$

v = 28 m/s

So, the speed of the bucket is 28 m/s. Hence, this is the required solution.

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Topic : Conservation of energy

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