and involves an average vertical acceleration of 80 g . Part A What average forc

Question

and involves an average vertical acceleration of 80 g . Part A What average force does the ground exert on the flea during its jump? ooo T-Mobile LTE 9:12 PM 2 session.masteringphysics.com Exercise 9.26 MasteringPhysics Exercise 9.26 High-speed photos of a 210 g flea jumping vertically show that the jump lasts 1.3 ms and involves an average vertical acceleration of 80 Part A What average force does the ground exert on the flea during its jump? Express your answer to two significant figures and include the appropriate units. F- Value Units Submit Give Up Part B What impulse does the ground exert on the flea during its jump? Express your answer to two significant figures and include the appropriate units. J-Value Units Submit Give Up Part C

Explanation / Answer

1) averege force = ma = 210*10^-6*80*9.8 = 0.165 N

2) impulse I = f*t = 0.165*1.3*10^-3 = 0.215*10^-3 Ns

3) from impulse momentum theprem

impulse = change in momentum = 0.215*10^-3 N s

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