Question

The drone can fly for 25 minutes before the battery needs recharging. the power output of the battery is 65.0 watts. calculate the maximum energy stored by the battery

Answer 1

Answer:

105.6 KJ

Explanation:

Assuming Drone flies with Full Power for 25 minutes

stored Energy = Power x time = 65 x 25x 60 = 105.6 Kjoules.

Answer 2

The maximum energy stored by the battery is 97.5 kilo-Joules.

Given,

Time for which the drone can fly before recharging=25 minutes

Power output of the battery=65 watts.

To find,

the maximum energy stored by the battery.

Solution:

• The rate of doing work is called power.
• It is represented by the following equation:
• $Power=\frac{Work(or energy)}{Time}$.
• Its unit is Watt(W).

The maximum energy stored by the battery will be:

Converting minutes to seconds,

$Power=\frac{Work(or energy)}{Time}\\65=\frac{Energy}{25*60} \\65=\frac{Energy}{1500}\\Energy=1500*65\\Energy=97500 Joules\\Energy=97.5 kJ.$

Hence, the maximum energy stored by the battery is 97.5 kilo-Joules.

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