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A lamp is 50ftdot above the ground. A ba...

A lamp is `50ftdot` above the ground. A ball is dropped from the same height from a point `30ftdot` away from the light pole. If ball falls a distance `s=16 t^2ftdot` in `t` second, then how fast is the shadow of the ball moving along the ground `1/2s` later?

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CENGAGE-APPLICATION OF DERIVATIVES-Examples
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