I need help on all parts please before opening his parachute. After the chute op

Question

I need help on all parts please

before opening his parachute. After the chute opens, he decends an Assignment Status Click here for detailed view Otheexpertta.com Problem Status 1 Completed 2 Completed 3 Completed 4 Partial 25% Part (a) Enter an expression for the skydivers average speed vi, duringth terms of the given quantities periodbefore opening he hiteh Grade Summary Deductions 100% Submissions 7 8 9 4 5 6 6 Attempts remaining (5% per attempt) letailed view VO Subn Hints: deduction per hint. Hlints remaining: - 25% terms of the given quantities Feedback: 3% deduction perfeedback. Part (b) Enter an expression for the skydiver's average speed, v2, during the period after opening the chute in 25% Part (c) Enter an expression for the skydiver's average speed during the entire fall, Va in terms of the given 25% Part (d) Calculate the skydiver's average speed during the entire fall, v, in meters per second.

Explanation / Answer

Here v1 and t1 are shown in figure (figure is cropped).

Let d1 = 380 m in t1 = 25 s

And d2 = 750 m in t2 = 109 s

a) v1 = d1/t1

b) v2 = d2/t2

c) the entire fall: According that clue:
d(total) = d1+d2 and t(total) = t1+t2
v(total)= d(total)/t(total)

d) d(total) = d1+d2 = 380+750 = 1130 m

and t(total) = t1+t2 = 134 s
v(total)= d(total)/t(total) = 1130/134 = 8.43 m/s

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