An autonomous delivery drone starts from rest and accelerates horizontally along a straight path. The graph below shows how the horizontal velocity, v m s−1v\text{ m s}^{-1}v m s−1, of the drone changes during the first 8 seconds8\text{ seconds}8 seconds of its flight.
a.[2]
At t=5 secondst = 5\text{ seconds}t=5 seconds, the total momentum of the drone and its payload is 384 kg m s−1384\text{ kg m s}^{-1}384 kg m s−1. Calculate the combined mass of the drone and its payload.
b.[3]
Determine the total distance travelled by the drone during the first 8 seconds8\text{ seconds}8 seconds of its flight.