A girl throws a ball at an inclined wall from a height of 3 ft, hitting the wall at A with a horizontal velocity v0 of magnitude 45 ft/s. Knowing that the coefficient of restitution between the ball and the wall is 0.9 and neglecting friction, determine the distance d from the foot of the wall to the Point B where the ball will hit the ground after bouncing off the wall.

The diagram that describes the question is attached as a file below

Explanation:

Tangent velocity,

....................(1)

Along the normal:

.................(2)

Dividing equation (1) by equation (2)

Time taken from A to E, t₁

Time taken from E to B, t₂

Total time, t = 1.15 + 2.23

t = 3.38 s

which three statements are true about all alloys?

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.