Q. A humanitarian aid package is dropped from a plane flying horizontally 500m above the ground with a speed 100m/s. What is the speed of the package at time of impact? (Calculate the total speed, not a horizontal or vertical projection.)
Q. An 88 g arrow is fired from a bow whose strength exerts an average force of 110 N on the arrow over a distance of 78 cm. What is the speed of the arrow as it leaves bow?