Please show step by step and explain how to solve a) and b) thank you.
Q) Suppose the distance, d(t) in feet, traveled by falling object is given by the formula
d(t)=1+5t+16t^2
a) Calculate the average speed of the falling object after 3 seconds. Please show your work.
b) Calculate the instantaneous speed at t=3 seconds. Please show your work.