Question

The time required for a car to reach 28.5 m/s from rest, accelerating at 3.70 m/s2 is __________ .

Answer 1

v = Vi + a t

28.5 = 0 + 3.70 t

Answer 2

7.70s

Answer 3

[AI-generated answer — Explain Bot]

To find the time required for a car to reach a certain speed from rest while accelerating, we can use the formula of motion:

v = u + at

Where:
v = final velocity (28.5 m/s)
u = initial velocity (0 m/s, since the car is at rest)
a = acceleration (3.70 m/s^2)
t = time.

Rearranging the formula, we have:

t = (v - u) / a

Substituting the given values, we have:

t = (28.5 m/s - 0 m/s) / 3.70 m/s^2

Now, let's calculate:

t = 28.5 m/s / 3.70 m/s^2

t = 7.7027 s

Therefore, the time required for the car to reach 28.5 m/s from rest, while accelerating at 3.70 m/s^2, is approximately 7.70 seconds.