A ball is thrown straight up with a speed of 36 m/s. How long does it take to return to its starting point, assuming negligible air resistance?
A) 7.3 s
B) 3.7 s
C) 15 s
D) 11 s

Question

Quizplus · Accepted Answer

The time it takes for an object thrown straight up to return to its starting point can be calculated using the formula $t = \frac{2v}{g}$, where $v$ is the initial velocity and $g$ is the acceleration due to gravity (approximately $9.8 \, \text{m/s}^2$). Plugging in the given values, $t = \frac{2 \times 36}{9.8} \approx 7.3 \, \text{s}$.

A Ball Is Thrown Straight Up with a Speed of 36