Mike ran ten laps around his school's 1/4 mile track in 15 minutes. he finishes his run at the exact same point that he started. what was his average velocity in miles per hour?

His average velocity was 0 miles per hour

Explanation:

The average velocity of an object is its total displacement divided by

the total time taken

It is the rate of changes of its position from one place to another

Average velocity is a Vector quantity

Its SI unit is meters per second

Mike ran ten laps around his school's 1/4 mile track in 15 minutes

He finishes his run at the exact same point that he started

That means he ran 10 laps of 1/4 mile each in 15 minutes

We need to find his average velocity in miles per hour

Then we must change 15 minutes to hour

1 hour = 60 minutes

15 minutes = hour

He ran 10 lap each lap is 1/4 mile

The distance he ran = miles

But his displacement is zero because he finished his race at the

same point of starting

The average velocity = total displacement ÷ total time

Total displacement = 0 miles

Total time =

The average velocity = 0 ÷ = 0 miles/hour

His average velocity was 0 miles per hour

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft