Graph between power and time is given below. Then which of the fo… - Vidyadip

MCQ

Graph between power and time is given below. Then which of the following option is correct for work done by force [from $t = 0$ to time $t$]

A
First increases tiil $t_1$ and then decreases till $t_2$
B
First decreases til $t_1$ and then increase till $t_2$
✓
Always increases
D
Always decreases

✓

Answer

Correct option: C.

Always increases

c
Power $(\mathrm{P})=\frac{d w}{d t}$

$d w=P d t$

So area of $P-t$ graph will be work done.

since times always increases area also increases.

workdone also increases.

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