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friedpork
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Homework Statement
A 1300kg car moving east collided with a 2600 kg SUV moving north at 28 m/s. The vehicles became stuck together . If the speed of the vehicles immediately after the collision was 30 m/s, what was their direction?
A) 21 degrees E of N
B) 52 degrees E of N
C) 58 degrees E of N
D) 69 degrees E of N
Answer is suppose to be B
Homework Equations
P1 + P2 = P aka m1v1 + m2v2 = (m1 + m2) v
The Attempt at a Solution
I first drew vectors and then tried to add them together but i don't know how to draw them here so yea..
I used the formula given ... m1v1 + m2v2 = ( m1 + m2) v.
Not given v1 so i attempted to solve that with algebra... v1 = ((m1 +m2)v - (m2v2))/ m
v1 = ((1300+2600) x 30) - (2600 x 28)) / 1300
v1 = 34 m/s
I drew a vector triangle eventually got tan ((2600 x 28)/(1300 x 24) = 58.74 degrees east of north
Please help and Thank You... Sorry if this was to messy to understand first time doing this :p
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