- #1
linnus
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Homework Statement
Car A with mass 2400 kg is moving along a straight stretch of road at 45 miles per hour. Car B with mass 1100kg follows with speed 65 miles per hour. How fast is the center of mass of the 2 cars moving?
Homework Equations
Xcm=(M1X1+...+MnXn)/ (M1+...+Mn)
The Attempt at a Solution
hmm i did
(2400kg x 45mph +1100kg x 65 mph)/ (1100kg+2400kg)= 51.3 mph
But that seems a bit too easy..