@Time Remaining: 56M 56S Gradebook Question 6 of 8 Searcordry at watters Stateco

Question

@Time Remaining: 56M 56S Gradebook Question 6 of 8 Searcordry at watters Statecommunity Coneg | Map it! A Tarzan (m = 90.0 kg) swings down from the cliff and has a speed of 11.0 m/s just before he impacts Jane (m- 50.0 kg). Anwer the towe questions below, using throe Answer the two questions below, significant digits Part A: Suppose the Tarzan is able to grab Jane, and the two of them swing together as a single unit. What is the speed of the pair (%)? Number m/s Part B: Suppose that Tarzan isn't fast enough to grab Jane secure, and instead, he bumps her, sending her forward. He has a forward speed of 2.05 m/s. What is Jane's forward speed (vJ)? Number m/s Previous Next save And Exit

Explanation / Answer

mT = 90 kg , mJ =50 kg, uT =11 m/s, uJ =0

PArt A: From conservation of momentum

mT*uT +mJ*uJ = (mT+mJ)*vp

(90*11) +0 = (90+50)vp

vp = 7.07 m/s

Part B: vT = 2.05 m/s

From conservation of momentum

mT*uT +mJ*uJ = mT*vT+mJ*vJ

(90*11) +0 = (90*2.05)+(50*vJ)

vJ = 16.11 m/s

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