Question

Problem 59d

Answer 1

Given information

The height of the cliff is . The projectile  is shot from the cliff with an initial speed of  at an angle of  with the horizontal.

Horizontal or x component of velocity   

Vertical or y component of velocity just before it hits the point P is    

Step-by-step explanation

Step 1.

The formula for the magnitude of velocity is     

Here is the component of velocity and   is component of velocity just before it hits the point P , and is the magnitude of velocity.

And we know that x component of velocity remains constant throughout the projectile motion.