# physics

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Most hummingbirds can fly with speeds of nearly 50.0 km/h. Suppose a hummingbird flying with a velocity of 50.0 km/h in the forward direction accelerates uniformly at 9.20 m/s^2 in the backward direction until it comes to a hovering stop. What is the hummingbird's displacement?

• physics -

Initial velocity, u = 50 km/h = 13.89 m/s
Final velocity, v = 0 km/h = 0 m/s
Acceleration, a = -9.2 m/s
Displacement, S
2aS = v²-u²
S=(v²-u²)/(2a)

Can you do the rest?

• physics -

10.48m

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