# Average Velocity & Instantaneous Velocity

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If a ball is thrown into the air with a velocity of 40ft/s, its height in feet after "t" seconds is given by y = 40t-16t^2.

a) Find the average velocity for the time period beginning when t=2 and lasting

(i) 0.5 seconds

(ii) 0.1 second

(iii) 0.05 seconds

(iv) 0.01 second

b) Find the instantaneous velocity when t=2.

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#### Solution Preview

a) Find the average velocity for the time period beginning when t=2 and lasting

y = 40t-16t^2.

y at t= 2 is 16

(i) 0.5 seconds

y at t= 2.5 is 0

Average velocity ...

#### Solution Summary

The solution calculates Average Velocity and Instantaneous Velocity for a ball is thrown into the air.

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