If there were no gravity,a ball thrown upward at an angle would follow a straight-line path.Due to gravity,however,at the end of 1 s it is
A)5 m below the straight line.
B)10 m below the straight line.
C)15 m below the straight line.
D)20 m below the straight line.
E)more than 20 m below the straight line.

Question

Quizplus · Accepted Answer

The ball falls 5 m below the straight-line path due to gravity after 1 second because the acceleration due to gravity is approximately 9.8 m/s^2, and the distance fallen in the first second can be calculated using the formula $d = \frac{1}{2}gt^2$, where $g$ is the acceleration due to gravity and $t$ is the time in seconds. Substituting $g = 9.8 m/s^2$ and $t = 1$ second, we get $d = \frac{1}{2} * 9.8 * 1^2 = 4.9$ meters, which is approximately 5 meters.

If There Were No Gravity,a Ball Thrown Upward at an Angle