Recent content by spark8819

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    Elastic collision in 2-dimensions

    Square eq (1): (3)^2=(0.866v'a+v'bcosθ)^2 9=(0.866v'a+v'bcosθ)(0.866v'a-v'bcosθ) 9=0.75v'a^2-0.866v'av'bcosθ+0.866v'av'bcosθ-v'b^2cos^2θ 9=0.75v'a^2-v'b^2cos^2θ REARRANGE: v'b^2cos^2θ=0.75v'a^2-9 (1) Square eq (2): (0.5v'a)^2=(v'bsinθ)^2 0.25v'a^2=v'b^2sin^2θ REARRANGE...
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    Elastic collision in 2-dimensions

    Homework Statement A 2.0 kg ball moving with a speed of 3.0 m/s hits, elastically, an identical stationary ball. If the first ball moves away with angle 30° to the original path, determine: a. the speed of the first ball after the collision. b. the speed and direction of the second ball after...
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    Struggling with First Year Physics? Get Help on PF!

    Hello all! new member here from Nova Scotia, Canada. I am mostly interested in getting some assistance with a first year physics course. Thanks to everyone for their assistance.
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