\"1 Verizon @0 * 75%-- 12:27 PM a session.masteringphysics.comm 2 A Flea in Flig

Question

"1 Verizon @0 * 75%-- 12:27 PM a session.masteringphysics.comm 2 A Flea in Flight A Flea in Flight In this problem, you will apply kinematic equations to a jumping flea. Take the magni acceleration to be 9.80 m/s Ignore air resistance. Part A A flea jumps straight up to a maximum height of 0.530 m. What is its initial veloc the ground? Express your answer in meters per second to three significant figures. Hints 322 ms Submit Correct My Answers Give Up 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 tme in air Submit My Answers Give Up Prow

Explanation / Answer

Solution-A)

Using formula

V² = U² + 2*a*s
0 = U² +2*(-9.8)*0.53
0= U² - 10.338
U² = 10.338
U = 3.22m/s

PART B

Using fornula-

s = ut + ½*a*t³
0 = 3.22t + (-4.9)t²
0 = 3.22t -4.9t²
4.9t² -3.22t = 0
t( 4.9t-3.22) = 0
t = 0 or t= 0.657 seconds.
Hence the flea is in the air for 0.657 seonds.

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