Please answer this questions!!!! https://s ysics.c ID=84859642 A Flea in Flight

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Please answer this questions!!!!

https://s ysics.c ID=84859642 A Flea in Flight « previous| 11 of 22 next A Flea in Flight Part A In this problem, you will apply kinematic equations to a jumping flea. Take the magnitude of free-fall acceleration to be 9.80 m/s Ignore air resistance A flea jumps straight up to a maximum height of 0.420 . What is its initial velocity vo as it leaves the ground? Express your answer in meters per second to three significant figures. Hints vo- 2.87 m/s Submlt My Answers Give Up Correct Part B How long is the flea in the air from the time it jumps to the time it hits the ground? Express your answer in seconds to three significant figures. Hints time in air Submit My Answers Give Up de Feed

Explanation / Answer

1)b) time of flight = 2v/g = 2*2.87/9.8 = 0.586 s

2) using the second equation of motion,

x = 0.5at^2

a = 2x/t^2 = 2*0.22/0.010^2 = 4400 m/s^2

= 4400/9.8 g

= 4.5*10^2 g answer

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