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Who was the first scientist to measure speed as distance over time?

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?