Question

Annie starts rest and speeds up to a velocity of 3m/s northeast over a period of 6 seconds. What is her average acceleration?

Answer 1

Answer: Her average acceleration is
`0.5 m/s^(2)`.

Step-by-step explanation:

Given: Initial velocity = 0 m/s

Final velocity = 3 m/s

Time = 6 seconds

Formula used to calculate the acceleration is as follows.

v = u + at

where,

v = final velocity

u = initial velocity

a = acceleration

t = time

Substitute the values into above formula as follows.

`v = u + at\\3 m/s = 0 + a * 6 s\\a = (3 m/s)/(6 s)\\= (1)/(2)m/s^(2)\\= 0.5 m/s^(2)`

Thus, we can conclude that her average acceleration is
`0.5 m/s^(2)`.