Question

Keiko is riding a skateboard 2 m/s, west. How long will it take her to reach a velocity of 8 m/s, west if her acceleration is 2 m/s*2?

3 seconds
10 seconds
8 seconds
6 seconds

Answer 1

Please hurry

Answer 2

8 seconds

Answer 3

I hurried,and I got 3 not 8

Answer 4

[AI-generated answer — Explain Bot]

To find the time it will take Keiko to reach a velocity of 8 m/s, west, we can use the equation:

v = u + at

Where:
v = final velocity (8 m/s)
u = initial velocity (2 m/s)
a = acceleration (2 m/s^2)
t = time

Rearranging the equation to solve for time:

t = (v - u) / a

Substituting the given values:

t = (8 m/s - 2 m/s) / 2 m/s^2
t = 6 m/s / 2 m/s^2
t = 3 seconds

Therefore, it will take Keiko 3 seconds to reach a velocity of 8 m/s, west.

Answer 5

v = Vi + a t

8 = 2 + 2 t
6 = 2 t
t = 3