Answer:
The answer is B complimentary
Explanation:
Answer:
11 m/s south
Explanation:
The velocity of the passenger relative to the river bank is equal to the velocity of the passenger relative to the ferry, plus the velocity of the ferry relative to the river, plus the velocity of the river relative to the river bank.
v_passenger,bank = v_passenger,ferry + v_ferry,river + v_river,bank
If we take north to be positive and south to be negative:
v = 1.0 m/s + (-10 m/s) + (-2 m/s)
v = -11 m/s
v = 11 m/s south
Distance of fall = (1/2) · (acceleration of gravity) · (time)²
= (1/2) · (1.63 m/s²) · (9 sec)²
= (0.815 m/s²) · (81 sec²)
= 66 meters .
On Earth ... IF there were no air ... the feather would fall
397 meters in the same amount of time !
