This question is incomplete, the complete question is;
All of the questions for this quiz involve a drone with a mass of 1.2 kg.
The drone hovers for 29 seconds at a height of 53 meters above the ground while taking a picture of a crowd. What is the vertical impulse by the lift force (combined force of the four rotors) during this time (in Newton-seconds)?
Answer: the vertical impulse is 341.388 Ns
Step-by-step explanation:
Given that;
mass m = 1.2 kg
t = 29 sec
h = 53 m
vertical impulse = ?
Vertical impulse by lift force is given as;
Vertical Impulse = F × t
= mg × t
so we substitute
Vertical impulse = 1.2 ×9.81 × 29
= 341.388 Ns
therefore the vertical impulse is 341.388 Ns