penguin has mass 10 kg while the other has mass 5 kg. At one point, the heavier
ID: 1876266 • Letter: P
Question
penguin has mass 10 kg while the other has mass 5 kg. At one point, the heavier penguin, starting from higher up the slope launches itself downwaed. It catches up to the heavier penguin afher 3 penguin starting from rest, begins sliding frictionlessly dowm the slope. At the same time, the lighter seconds, both penguins then collide and, slide together dow the hilIythe coision the pai ofis oving down the slope width a speod of 14 mvf. 9) What is the sotal momentum of the two penguins immediately after their collision 10) What is the heavier penguin's momentum just before the collision? 12) How fast did the lighter penguin launch itself down the slope? PRORLEM FOR THE PURE FUN OF IT SO IT IS NOT GRADED, BUT ID BE HAPPY TO LOOK 14) NOTE THAT THIS PROBLEM IS OUTSIDE THE SCOPE OF THE STANDARD MATERIAL. THIS IS A AT YOUR WORK IF YOU WANT TO SHARE IT WITH ME. NOTICE THAT THERE IS NO SLOT FOR ENTERING IN AN ANSWER 0,3 2 3Explanation / Answer
9) pf = m v = (5 + 10) (14)
pf = 210 kg m/s ......Ans
10) a = 9.8 sin13 = 2.20 m/s^2
after 3 sec,
v = a t = 6.61 m/s
momentum = 10 x 6.61 = 66.1 kg m/s .....Ans
11) p_lighetr = 210 - 66.1 = 143.9 kg m/s
12) v = 143.9 / 5 = 28.8 m/s
13) Impulse = change in momentum = pf - 0
= 210 kg m/s
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