charlie’s car accelerates at an average rate of 3 m/s2. calculate how long it takes her car to speed up from 29 m/s to 30 m/s
To find the time it takes for Charlie's car to speed up from 29 m/s to 30 m/s, we can use the equation:
v = u + at,
where:
v = final velocity (30 m/s),
u = initial velocity (29 m/s),
a = acceleration (3 m/s²),
t = time.
Rearranging the equation to solve for time, we have:
t = (v - u) / a.
Plugging in the given values:
t = (30 m/s - 29 m/s) / 3 m/s².
Simplifying:
t = 1 m/s / 3 m/s²,
t = 1/3 s.
Therefore, it takes Charlie's car 1/3 of a second to speed up from 29 m/s to 30 m/s.