Question

Force of 100 n is applied on an object and the object displaced to a distance of 8m in 20s, then
the power on object is [ ]
a) 160 w b) 40 w c) 3200 w d) 1000 w

Answer 1

Solution :

⏭ Given:

✏ Force applied on object = 100N

✏ Displacement = 8m

✏ Time interval = 20s

⏭ To Find:

✏ Power on object.

⏭ Concept:

✏ Power is defind as ratio of net work done to the time interval.

⏭ Formula:

✏ Formula of power in terms of Force, displacement and time is given by

$\star \: \underline{ \boxed{ \bold{ \sf{ \pink{P = \frac{W}{t} = \frac{F \times d}{t}}}}}} \: \star$

⏭ Terms indication:

✏ P denotes power

✏ F denotes applied force

✏ d denotes displacement

✏ t denotes time

⏭ Calculation:

$\mapsto \sf \: P = \frac{100 \times 8}{20} \\ \\ \mapsto \sf \: p = \frac{800}{20} \\ \\ \mapsto \underline{ \boxed{ \bold{ \sf{ \large{ \purple{Power = 40 \: Watt}}}}}} \: \red{ \bigstar}$

Answer 2

Answer:

40w option bbbbbbbbbbbbbbbbbbbbbbb