Question

6) If you accelerate at an average rate of 1.5 m/s, how long will it take to increase your

speed from 12 m/s to 36 m/s?
a) 12 s
b) 14 s
c) 16 s
d) 18 s
e) 20 s

Answer 1

To find the time it takes to increase speed from 12 m/s to 36 m/s with an average acceleration of 1.5 m/s², we can use the formula ∆t = ∆v/a, where ∆v is the change in velocity, a is the acceleration, and ∆t is the time interval. Substituting the values, we find that it takes 16 seconds.

Step-by-step explanation:

To find the time it takes to increase speed from 12 m/s to 36 m/s with an average acceleration of 1.5 m/s², we can use the equation:

∆v = a∆t

where ∆v is the change in velocity, a is the acceleration, and ∆t is the time interval. Rearranging the equation, we have:

∆t = ∆v/a

Substituting the values into the equation:

∆t = (36 m/s - 12 m/s) / 1.5 m/s² = 16 seconds

Therefore, the correct answer is 16 s.