lking226 said:is the kinetic energy-work theorem net work = change in kinetic energy?
so then, w = 1/2mvf^2-1/2mvi^2, but vf is 0 because the arrow is stopped in the hay so really w = -1/2mvi^2. does that stay negative?
To calculate the velocity of an arrow hitting hay, you will need to measure the distance the arrow travels and the time it takes to travel that distance. You can then use the formula velocity = distance / time to determine the velocity of the arrow.
The distance should be measured in meters and the time should be measured in seconds. This will ensure that the velocity is calculated in meters per second (m/s).
Yes, the velocity of an arrow hitting hay is affected by the weight of the arrow. Heavier arrows will have a slower velocity compared to lighter arrows when fired with the same amount of force. This is because heavier objects require more force to accelerate.
The velocity of an arrow hitting hay can also be affected by the force with which it is launched, air resistance, and the angle at which it is launched. These factors can vary depending on the type of bow used and the environmental conditions.
Yes, the velocity of an arrow hitting hay can be used to determine its kinetic energy. The formula for kinetic energy is 1/2 x mass x velocity^2. By calculating the velocity of the arrow and knowing its mass, you can determine its kinetic energy upon impact with the hay.