Suppose you increase your walking speed from 1m/s to 3m/s in a period of 1s. What is your acceleration?
a:2m/s
b:5m/s
c:4m/s
d:3m/s
3m/s
a = Vf - Vo) / t = (3 - 1) / 1 = 2m/s^2
To find the acceleration, we can use the formula:
acceleration = (change in velocity) / (time taken)
Given that the change in velocity is 3 m/s - 1 m/s = 2 m/s, and the time taken is 1 s, we can substitute these values into the formula:
acceleration = (2 m/s) / (1 s) = 2 m/s²
So, the acceleration is 2 m/s². Therefore, the correct answer is (a) 2m/s².
To find the acceleration, we need to use the formula:
acceleration (a) = change in velocity (Δv) / time taken (Δt)
In this case, the change in velocity is the final velocity minus the initial velocity, and the time taken is given as 1 second.
Change in velocity (Δv) = final velocity - initial velocity
Δv = 3 m/s - 1 m/s
Δv = 2 m/s
Now, we can substitute the values into the acceleration formula:
acceleration (a) = Δv / Δt
a = 2 m/s / 1 s
a = 2 m/s²
Therefore, the acceleration is 2 m/s². So the correct answer is a: 2m/s².