The time it takes for the cannonball to strike the ground if a certain cannon is fired from a height of 8.1 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at the time, t, in seconds, is found by the function h(t) =-4.9 t² + 27.5t + 8.1 is 5.612 seconds.
What is velocity?
A vector measure of movement's speed and direction is called velocity. Simply described, velocity is the rate of movement in a specific direction.
Given:
The height of the cannon = 8.1 m
The height equation, h = -4.9 t² + 27.5t + 8.1
Calculate the time by putting the value of height in the equation as shown below,
h = (-4.9 t² + 27.5t + 8.1)
8.1 = (-4.9 t² + 27.5t + 8.1)
-4.9 t² + 27.5t = 0
Solve the quadratic equation,
t = 5.61224 sec
Therefore, the time it takes for the cannonball to strike the ground if a certain cannon is fired from a height of 8.1 meters above the ground, at a certain angle, the height of the cannonball above the ground, h, in meters, at the time, t, in seconds, is found by the function h(t) =-4.9 t² + 27.5t + 8.1 is 5.612 seconds.
To know more about velocity:
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