A marine research drone travels in a horizontal circular path around a hydrothermal vent at a constant speed.
Explain why the drone's velocity is not constant.
The work done by the drone's propulsion system after completing one full orbit of the vent is 16200 J16200\text{ J}16200 J. It takes the drone 135 s135\text{ s}135 s to complete one orbit.
Calculate the power of the drone's propulsion system.
After completing the orbit, the drone slows down from a velocity of 12.4 m/s12.4\text{ m/s}12.4 m/s to a velocity of 3.4 m/s3.4\text{ m/s}3.4 m/s. The magnitude of the deceleration of the drone is 0.6 m/s20.6\text{ m/s}^20.6 m/s2.
Calculate the time taken for the drone to change velocity.
Use the equation: $\text{acceleration} = \frac{\text{change in velocity}}{\text{time}}$