The restoring force a bow provides to an arrow as it is pull…
The restoring force a bow provides to an arrow as it is pulled back can be modeled as a spring force. The great archer Gila “nocks” an 18-g arrow by pulling it back a distance of 45 cm. Gila fires the arrow horizontally from a small cliff with a height of 15 m, and when the arrow reaches the bottom, it has a speed of 63 m/s. What is the effective spring constant of the bow as Gila nocks the arrow?
Read DetailsHecelina drives her horse to pull her wagon up a long, shall…
Hecelina drives her horse to pull her wagon up a long, shallow hill. The horse and wagon together have a mass of 1600 kg, and the horse provides a constant force of 1000 N directing the wagon up the hill. The hill rises a vertical distance of 8.0 m, and the hill is 85 m long along the slope. With what starting speed must Hecelina drive her horses so that they barely make it to the top of the hill before stopping? Neglect any drag forces.
Read DetailsDeadeye Martin fires a 18-g arrow at a speed of 40 m/s at a…
Deadeye Martin fires a 18-g arrow at a speed of 40 m/s at a 150-g apple tossed into the air by his friend Jaquette. If the arrow arrow travels straight through the apple at the peak of the apple’s trajectory, and the apple’s speed is 1.8 m/s after the collision, what is the speed of the arrow immediately after hitting the apple?
Read DetailsHecelina drives her horse to pull her wagon up a long, shall…
Hecelina drives her horse to pull her wagon up a long, shallow hill. The horse and wagon system have a mass of 1600 kg, and the horse provides a constant force of 1000 N directing the wagon up the hill. The hill rises a vertical distance of 8.0 m, and the hill is 85 m long along the slope. With what starting speed must Hecelina drive her horses so that they barely make it to the top of the hill before stopping? Neglect any drag forces.
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