HISTORY
ANCIENT CHINA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Military Bow
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Angled Bow
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Repeating Rifle
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Crossbow
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Detailed explanation-1: -Crossbow: A crossbow is a bow set horizontally on a stock. When the shooter releases a mechanism, the crossbow fires arrows or bolts forced by the mechanical energy of previously stretched bowstring.
Detailed explanation-2: -Combining Forces When the archer releases the bowstring, the arrow will be flung forward toward the top of the target where she’s aiming. But another force will also act on the arrow in a different direction. The other force is gravity, and it will pull the arrow down toward Earth.
Detailed explanation-3: -(d) While the arrow moves towards its target, the forces acting on it are due to gravity and that due to friction of air. Was this answer helpful?
Detailed explanation-4: -A drawn arrow has 50 J of stored energy due to the stretch of the bow and string. When released, this energy is converted into kinetic energy such that the arrow will have 50 J of kinetic energy upon being fired.
Detailed explanation-5: -c. The type of force responsible for a change in the state of motion of the arrow is an example of a contact force.