Coefficient of kinetic friction of car collision

AI Thread Summary
To determine the speed of the 1000kg car before the collision, the conservation of momentum principle is applied, stating that the initial momentum must equal the final momentum in both the x and y directions. The collision causes both cars to skid 17m at a 30-degree angle before stopping, and the coefficient of kinetic friction for rubber tires on pavement is 0.80. However, the discussion highlights a lack of sufficient information, particularly the initial velocity of the 1180kg car, which is crucial for solving the problem. Without this data, the calculations cannot be completed. The conversation emphasizes the importance of having all necessary variables to apply the conservation of momentum effectively.
xshezsciencex
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Two cars collide causing them to skid 17m at an angle of 30degrees north east before stopping. One car is 1180kg and the other is 1000kg. The coefficient of kinetic friction for a rubber tire slidin on pavement is 0.80

How would I determine the 1000kg cars' speed before the collision?

My attempt:
Conservation of Momentum
P(final)y
y= 30degrees

coefficient friction = Mv
f = Mmg (m is the mass)
 
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xshezsciencex said:
Conservation of Momentum
P(final)y
y= 30degrees

First, the conservation of momentum says that P(initial)x=P(final)x and P(initial)y=P(final)y. However, there isn't enough information in this question for you to solve it. Are you sure you're not given the initial velocity of the 1180 kg car?
 

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