projectile motion Homework

What is the initial height of the parabola?

• h = 0.563

• h = 10.063

• h = 5

• h = 1.356

The pathway of an arrow can be represented by the equation h = -16t² + 80t + 25, where h is the height in feet and t is the time in seconds. What is the maximum height?

• h = 125 feet

• h = 80 feet

• h = 95 feet

• h = 140 feet

A rock is dropped from a bridge 320 feet above a river. The pathway that the rock takes can be modeled by the equation h = -16t² + 320. How long will it take the rock to reach the river (ground)?

• 4.5 seconds

• 2.5 seconds

• 3.8 seconds

• 3.5 seconds

Tags

CCSS.HSA.SSE.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

Joe Mauer hits a fly ball. You can track the height of the ball using the equation: h(t) = -16t² + 140t + 2. What is the starting height of the ball?

• -16 feet

• 140 feet

• 2 feet

• 0 feet

Tags

CCSS.HSA.SSE.A.1

Charlie shoots a basketball from a height of 6 feet with an initial upward velocity of 18 feet per second. It follows the path h(t) = -16t² + 18t + 6. How long will it take the ball to reach the maximum height?

• 0.6 seconds

• 11 seconds

• 6 second

• this graph has a minimum

The height of an object thrown into the air can be modeled by the formula h(t) = -16t² + 70t + 95, where h(t) is in feet after t seconds.
What is the height of the object after 5 seconds?

• 95 feet
• 45 feet
• 70 feet
• 171.56 feet

Tags

CCSS.HSA.SSE.A.1

CCSS.HSF.IF.A.1

CCSS.HSF.IF.A.2

A ball is thrown into the air with an upward velocity. Its height, h, after t seconds is given by the function below.
 $h=-16t^2+64t+960$  
How many seconds did it take for the ball to reach its maximum height?

• 10 seconds

• 64 seconds

• 960 seconds

• 2 seconds

Tags

CCSS.HSA.SSE.A.1

CCSS.HSA.REI.B.4

A ball is thrown into the air with an upward velocity. Its height, h, after t seconds is given by the function below.
$h=-16t^2+64t+960$
What is the maximum height reached?

• 1024 feet

• 64 feet

• 960 feet

• 2 feet

Tags

CCSS.HSA.SSE.A.1

CCSS.HSA.REI.B.4

CCSS.HSA.CED.A.1

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function
 h = -16t² + 64t + 960.
When did the ball hit the ground?

• 10 seconds
• 2 seconds
• 5 seconds
• 7 seconds

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.REI.D.11