22ndnd Semester Final Semester Final Review IXReview IXPractice and MiniQuizPractice and MiniQuiz

Problem P1Problem P1

The distance, The distance, hh, traveled in , traveled in tt seconds seconds dropped from a height isdropped from a height is

If an object is dropped from a height of 144 If an object is dropped from a height of 144 feet, how long will it take before the object feet, how long will it take before the object hits the ground?hits the ground?

Problem P2Problem P2 A rocket is launched atop a 48-foot cliff A rocket is launched atop a 48-foot cliff

with an initial velocity of 32 feet per with an initial velocity of 32 feet per second. The height of the rocket in second. The height of the rocket in tt seconds after launch is given by the seconds after launch is given by the equation:equation:

The rocket will obviously strike when The rocket will obviously strike when hh =0. =0.Solve the equation…Solve the equation…

Problem P3Problem P3

Todd kicked a football. The equation:Todd kicked a football. The equation:

describes the height of the ball describes the height of the ball t t seconds seconds after it was kicked. Approximately how after it was kicked. Approximately how many seconds went by before the ball hit many seconds went by before the ball hit the ground?the ground?

Problem P4Problem P4

Find:Find:

Problem P5Problem P5

Evaluate:Evaluate:

Problem P6Problem P6

What is the opposite of :What is the opposite of :

Problem P7Problem P7

What is this equal to:What is this equal to:

MiniQuiz FR IXMiniQuiz FR IX

NameName PeriodPeriod

Answer ColumnAnswer Column ( 1 – 7 )( 1 – 7 )

Problem MQ1Problem MQ1

The distance, The distance, hh, traveled in , traveled in tt seconds seconds dropped from a height isdropped from a height is

If an object is dropped from a height of 256 If an object is dropped from a height of 256 feet, how long will it take before the object feet, how long will it take before the object hits the ground?hits the ground?

Problem MQ2Problem MQ2 A rocket is launched atop a 288-foot cliff A rocket is launched atop a 288-foot cliff

with an initial velocity of 48 feet per with an initial velocity of 48 feet per second. The height of the rocket in second. The height of the rocket in tt seconds after launch is given by the seconds after launch is given by the equation:equation:

The rocket will obviously strike when The rocket will obviously strike when hh =0. =0.Solve the equation…Solve the equation…

Problem MQ3Problem MQ3

Todd kicked a football. The equation:Todd kicked a football. The equation:

describes the height of the ball describes the height of the ball t t seconds seconds after it was kicked. Approximately how after it was kicked. Approximately how many seconds went by before the ball hit many seconds went by before the ball hit the ground?the ground?

Problem MQ4Problem MQ4

Find:Find:

Problem MQ5Problem MQ5

Evaluate:Evaluate:

Problem MQ6Problem MQ6

What is the opposite of :What is the opposite of :

Problem MQ7Problem MQ7

What is this equal to:What is this equal to: