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4. For any given initial speed, the range of a projectile is maximum when the object is thrown at an angle of 45 degrees relative

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4. For any given initial speed, the range of a projectile is maximum when the object is thrown at an angle of 45 degrees relative to the horizontal. (Assume air resistance is negligible.) 5. * *(mass)x(velocity)? is the formula for kinetic energy. 6. momentum = mass * velocity 7. Friction always acts on an object in the direction which is opposite the direction of motion

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