Question

How fast is an airplane traveling that accelerates at a rate of 20 mph per second for 30 seconds?

Answer 1

Should be 600! hope this helps.

Answer 2

Step-by-step explanation:

The given data is as follows.

acceleration (a) = 20 mph

time (t) = 30 sec

initial velocity (u) = 0

As 1 mph = 0.447 m/s. So, convert 20 mph into m/s as follows.

`20 mph/s * (0.447 m/s)/(1 mph)`

= 8.94
`m/s^(2)`

Relation between velocity, acceleration and time is as follows.

v = u + at

Putting the given values into the above formula as follows.

v = u + at

v =
`0 + 8.94 m/s^(2) * 30 sec`

= 268.2 m/s

Therefore, we can conclude that at a speed of 268.2 m/s the airplane is travelling in the given situation.