Question

marion jones changes her velocity from 8 m/s to 11 m/s. gail devers changes hers from 7 m/s to 10 m/s in the same period of time. who has the higher average acceleration?

Answer 1

Both Marion Jones and Gail Devers have the same average acceleration, as they both changed their velocity by 3 m/s over the same period of time.

Step-by-step explanation:

To determine who has the higher average acceleration, we use the formula for average acceleration, which is a = Δv/Δt, where Δv is the change in velocity and Δt is the change in time. For Marion Jones, the change in velocity is 11 m/s - 8 m/s = 3 m/s. For Gail Devers, it's also 10 m/s - 7 m/s = 3 m/s. Since both changes in velocity are the same and occurred over the same time period, both athletes have the same average acceleration.

Acceleration is calculated by dividing the change in velocity by the time taken. In this case, Marion Jones changed her velocity by 3 m/s (11 m/s - 8 m/s) and Gail Devers changed hers by 3 m/s (10 m/s - 7 m/s). Both changes occurred in the same period of time. Therefore, both athletes have the same average acceleration.