A curling stone with a mass of 700 kg moves across the ice, Ask an Expert

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A curling stone with a mass of 7.00 kg moves across the ice at a speed of 1.35 m/s in the positive x direction. It collides with another curling stone with the same mass (7.00 kg). After the collision stone 1 has a speed of 0.457 m/s at an angle of 54 degrees to the left of the x axis.

A) What is the initial kinetic energy?

B) What is the initial momentum (magnitude and direction)?

C) What is the speed and direction of stone 2 after the collision?

D) What is the total momentum perpendicular to the x axis after the collision?

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