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55

Step-by-step Answer
PAGE: 690SET: ExercisesPROBLEM: 55
Please look in your text book for this problem Statement

The Adam hits a golf ball off a cliff height is .

The initial speed is .

The angle of elevation is to the horizontal.

The value of .

Time as a parameter in parametric equations are and .

Substitute and in .

.

Substitute , , and in .

.

The parametric equations that model the position of the ball as a function of time is and .

(b)

The ball is in the air until, .

and

and .

Time should not be in negative.

.

The ball in the air is .

(c)

The horizontal distance .

Substitute .

.

The horizontal distance travelled the ball is .

(d)

The maximum height occurs at the vertex of the quadratic function.

.

Substitute in .

.

The maximum height is .

(e)

The equations are and .

Graph the equations and .

(a) The parametric equations that model the position of the ball as a function of time is and .

(b) The ball in the air is .

(c) The horizontal distance travelled the ball is .

(d) The maximum height is .

(e) Graph of the equations and .

.



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