If a ball is thrown in the air with a velocity 48 ft/s. its height in feet t seconds later is given by y =48t-16t2. (round your answers to one decimal place.)

a. find the average velocity for the time period beginning when t = 2 and lasting 0.5 second.
b. find the average velocity for the time period beginning when t = 2 and lasting 0.05 second.
c. find the average velocity for the time period beginning when t = 2 and lasting 0.01 second.
d. estimate the instantaneous veiocity when t=2.

(a)-24 ft/s

(b)-16.8 ft/s

(c)-16.16 ft/s

(d) -16 ft/s

Explanation:

The initial velocity, v=48 ft/s

(a)

The average velocity when t=2 and 0.5 seconds later hence t=2.5 is given by

(b)

The average velocity when t lasts 0.05 second then

t=2 and t=2.05 is given by

(c)

The average velocity when t=2 and lasts 0.01 s then t=2.01 then is determined by

(d)

As the intervals get small, that is to imply from 0.05 s later to 0.01 s later as seen in parts a to c, the values are getting small and closer to 16 hence the instantaneous velocity at t=2 is -16 ft/s

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach