Consider the collision between two hockey pucks in the figure below. They do not

Question

Consider the collision between two hockey pucks in the figure below. They do not stick together. Their speeds before the collision are v1i = 30 m/s and v2i = 13 m/s. It is found that after the collision one of the pucks is moving along x with a speed of 5 m/s. What is the final velocity of the other puck?

magnitude m/s direction Consider the collision between two hockey pucks in the figure below. They do not stick together. Their speeds before the collision are v1i = 30 m/s and v2i = 13 m/s. It is found that after the collision one of the pucks is moving along x with a speed of 5 m/s. What is the final velocity of the other puck?

Explanation / Answer

m*(30(cos30i-sin30j)) + m*13j) = m*5i + m*v

so, 25.98i -2 j = 5i+v

so, v= 20.98 -2 j

magnitude = sqrt(20.98^2+2^2)= 21.0751132856 m/s

direction =5.44548707886 degrees

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