a) From the graph, estimate how long it takes for the ball to reach the ground again and compare it to your calculated value, i.e. calculate the percent error. b) From the graph, estimate the maximum height of the ball and compare it to your calculation, i.e. calculate the percent error.
a) From the graph, estimate how long it takes for the ball to reach the ground again and compare it to your calculated value, i.e. calculate the percent error.
b) From the graph, estimate the maximum height of the ball and compare it to your calculation, i.e. calculate the percent error.
We are taking the x-direction to be the vertical direction.
(a)From the graph, the time taken by the ball to reach the ground is 4.0s.
The ball is a projectile. The equation for the time period of a projectile is given by
(1)
Here, is the initial vertical velocity of the ball and g is the magnitude of the acceleration due to gravity.
From the second graph, the initial vertical velocity is 20m/s.
From the third graph
Substituting the values in equation (1),
Since the value from the graph and the calculated value are the same, the percentage error will be zero.
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