A shot-putter moves his arma and the 7kg shot througha distance of 1m, giving the shot a velocity of 10m/s from rest. Find the average velocity on the shot
To find the average velocity of the shot, we need to use the formula for average velocity, which is:
Average velocity = (final velocity - initial velocity) / time
In this case, we are told that the shot is initially at rest, so the initial velocity is 0 m/s. We are also given the final velocity, which is 10 m/s. However, we are not given the time it takes for the shot to reach this velocity.
To determine the time, we can use the formula for average velocity:
Average velocity = displacement / time
We are given that the shot is moved through a distance of 1 meter. Therefore, we have:
10 m/s = 1m / time
To find the time, we can rearrange the equation:
time = displacement / average velocity
Substituting the given values, we get:
time = 1m / 10 m/s = 0.1 s
Now that we have the time, we can substitute it back into the formula for average velocity:
Average velocity = (final velocity - initial velocity) / time
= (10 m/s - 0 m/s) / 0.1 s
= 10 m/s
Therefore, the average velocity of the shot is 10 m/s.
To find the average velocity of the shot, we need to determine the initial and final velocities of the shot and then calculate the average velocity using the formula:
Average velocity = (final velocity + initial velocity) / 2
Given:
Initial velocity (u) = 0 m/s (shot was at rest)
Final velocity (v) = 10 m/s
We can substitute these values into the formula to find the average velocity:
Average velocity = (10 + 0) / 2
Average velocity = 10 / 2
Average velocity = 5 m/s
Therefore, the average velocity of the shot is 5 m/s.