The last one is correct (D)
Answer:
never lol
studying is your work
but why all are doing I don't know=_=
Answer:
The work done by the wind as the boat moves 130 ft is (rounded) W= 31,550 ft-lb.
Explanation:
F= 300 lb < -54º
Fsouth= 300 lb * cos(36º)
Fsouth= 242.7 lb
d= 130 ft
W= F*d
W= 31551 ft-lb
The first one is: head
Second one is: 10 trillion km
