When an arrow is shot from its bow, it has kinetic energy. From where does it get the kinetic
energy:
a) when the arrow is released
b) when the bow is released
c) both arrow and bow are released
d) None of the above.
Answers
Answer:
A stretched bow has potential energy due to the change in its shape. To shot the arrow, the bow has to be released.
Therefore, its potential energy is converted into the kinetic energy of the arrow.A heavy mass M resting on the ground is connected to a lighter mass m through a light inextensible string passing over an ideal pulley. The string connected to mass M is loose. Let lighter mass m be allowed to fall freely through a height h such that the string becomes taut. If t is the time from this instant onward when the heavier mass again makes contact with the ground and ΔE is change in kinetic energy then
HARD
Study later
View Answer
Explanation:
Ayush's
Answer:
when the string is released
Explanation:
as we hold the string in our it take some amount of energy to to pull it. this enrgy is converted into elastic potential energy and is stored in the string until u release it. after releasing the string the aroow gains the kinatic energy due the tention or potential enrgy of the string.