Question

priya drops a ball from the top of a building, and she wants to calculate the gravitational acceleration (little g) acting on the ball near the surface of the earth. which of the following correctly defines this gravitational acceleration? g = 9.8 s. g = 9.8 m/s². g = 9.8 m. g = 9.8 m/s.

Explanation:

Step1: Recall acceleration unit

Acceleration is change in velocity per unit time. Its SI - unit is $\frac{\text{m}}{\text{s}^2}$.

Step2: Identify correct option

Gravitational acceleration near the Earth's surface has a magnitude of approximately 9.8 and unit $\frac{\text{m}}{\text{s}^2}$.

Answer:

B. $g = 9.8\text{ m/s}^2$