Oh, I see that makes sense. How come we couldn't assume that the collision was elastic?
And since it is in space where there is no gravity, does it affect the collision?
Ok so I'm a little confused here
a) Momentum is not conserved for the single object.
b) The momentum of both are conserved because their sum equals zero.
c) Since it is an elastic collision, the kinetic energy can not be zero because the space ships don't stick together?
Do we have to factor...
Ok so i noticed no one is replying to my thread so I'm going to elaborate a little.
to solve for initial velocity of car 2 i wrote
V21 = v2g - v1g
(-7.5, 13.0) = v2g - (0, 20)
v2g = (-7.5, -7)
Then to find the final velocity i did
m1v1 + m2v2 = (m1 + m2) v2
(40)(0,20) + (50)(-7.5,-7) = 90v2...
Yeah and thanks for the reply! I actually used that equation for part b).
But if i did use the conservation of energy principle wouldn't I need to be given velocity?
Homework Statement
You are moving due North in your car with velocity (0, 20m/s). You see another car traveling with a relative velocity of 15 m/s with an angle of 150 degrees. You have a mass of 30 kg, the other tricyclist has a mass of 40kg and the tricycles both have mass 10kg. You...
Homework Statement
You are making a large spring. You want a 150kg person to be able to stand on the spring an be above or just touch the ground which is 15 cm below.
a) What is the minimum spring constant the large spring should have?
b) From the above value, if you have a mass of 70kg...