Newton’s 3rd law task?
Two people (m1=60 kg, m2=90 kg) are standing in inflatable boats. They are holding the ends of a long, massless rope. The boats are initially resting on a lake at positions Xa=100 m and Xb=400 m. Now both begin pulling in the rope. State the location where both will collide. Friction is neglected, as is the size of the boats.
Does anyone have an idea? I know they exert the same force on each other, but the heavier person travels a shorter distance.
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s = 1/2 a t2 (if you apply constant force)
a1 = F/m1
a2 = F/m2
Form and shorten the quotients of s1 and s2.
what do you mean by quotient?
what do you mean by quotient? because iwie stands there for me S1/s2 =m2/m1
The distance sections of the 300 m behave like the masses.
Due to the pulse retention set, the common center of gravity of the boats does not move. The boats therefore meet in the center of gravity.
The distance of the boats is 300 m. The heavy boat has the distance 60/150 * 300 m = 120 m, the light 90/150 * 300 m = 180 m.
where are the 150? so wsl is the half of the distance with grint. but the sp is not necessarily exactly in the middle, or
ach gott no I stood on the hose… this is the center of gravity movement and the sum of the mass
So do they meet at X =280m?
Yes, if the light boat starts at 100 m and the heavy one at 400 m.