Question

Problem 66

Answer 1

Given information

Net height is .

Net is from the server.

Ball is launched from a height of .

Step-by-step explanation

Step 1.

From the second equation of motion  

Here is height, is the vertical component of velocity, is acceleration due to gravity and is time

As the ball is launched from a height of and the ball has to clear the net of height . So the height we take in the formula is the difference of these two.

So now the height is   

The vertical component of velocity will be zero , as the ball goes horizontally.

So here  

Thus substituting the values we get

 

(equation )