Question

a bird is flying 57.6 km/hr against a strong wind blowing at 7.5 km/hr. how long would it take to fly from one trees top to another 630m away? plz help out the answer please​

Answer 1

Answer:

time = 45.27 second = 0.75 hours

Step-by-step explanation:

V bird = 57.6 km/hr = 57.6 x 5/18 = 16 m/s

V wind = 7.5 km/hr = 7.5 x 5/18 = 2.08 m/s

distance = 630 m

net velocity = V bird - V wind

                    = 16 - 2.08 = 13.51 m/s

distance = speed x time

time = speed / distance

       = 630 / 13.51

       = 45.27 second = 0.75 hours