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16) Comp ute the force on a 2.00 kg cannon ball that exists a cannon with a 1.00 meter long barrel at a speed of 630. km/s (2 points) 17) A roller coaster that starts from rest has 5.00 km long drop. If the cart has a mass of 2000 kg. Whats the velocity only 1.00 km from the top and at the bottom, O km?(4 points)
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