A 0.810 kg particle has a speed of 2.60 ms at point a and, Ask an Expert

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Q. A 0.810 kg particle has a speed of 2.60 m/s at point A and kinetic energy of 8.80 J at B. What is its speed at B? Answer in units of m/s.

Q. A sailboat leaves a harbor and sails 1.8km in the direction 65degrees south east. where the captain stops for lunch. A short time later, the boat sails 1.1km in the direction 15 degrees north of east. what is the magnitude of the resultant displacement.

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