Consider a drop of rainwater having a mass of 1 g, is falling from a height of 1 km. It hits the ground with a speed of 
. Take g constant with value 
. The work done by the (i) gravitational force and the (ii) resistive force of air are:
(a) (i) 1.25 J | (ii) -8.25 J |
(b) (i) 100 J | (ii) 8.75 J |
(c) (i) 10 J | (ii) -8.75 J |
(d) (i) -10 J | (ii) -8.25 J |
Text Solution
Verified by ExpertsThe correct answer is:
C
Work done by the gravitational force,
We know that,
work done by all force = change in kinetic energy
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