Question

Suppose you increase your walking speed from 7 m/s to 15 m/s in a period of 1 s. What is your acceleration?

Answer 1

Hi!

The answer is 8 m/s^2

Explanation:

Acceleration is defined as the rate of change of an object's velocity, per unit time. Meaning, the rate at which an object is increasing/decreasing its velocity with the passage of time in a given period.

If an object is moving at constant velocity, its acceleration would be 0, because there is no change in velocity. In our case, the velocity is increasing, and to calculate this, we will use a simple formula,

acceleration = change in velocity / time

and change in velocity is calculated by subtracting the value of initial velocity (u) from final velocity (v).

Our known values are:

u = 7m/s

v = 15m/s

t= 1s

a = ?

Putting the values in the equation for acceleration:

a = u - v / t

a = 15 - 7 / 1

a = 8 m/s^2

Hope this helps!