SOLUTION: 4. You and a friend are hiking in the mountains. You want to climb to a ledge that is 20 ft. above you. The height of the grappling hook you throw is given by the function ( ) 16

Question 150872: 4. You and a friend are hiking in the mountains. You want to climb to a ledge that is 20 ft. above you.
The height of the grappling hook you throw is given by the function ( ) 16 32 5 2
h t −t −t . What is the
maximum height of the grappling hook? Can you throw it high enough to reach the ledge?
5. You are trying to dunk a basketball. You need to jump 2.5 ft. in the air to dunk the ball. The height
that your feet are above the ground is given by the function h(t) 16t 12t 2
−. What is the maximum
height your feet will be above the ground? Will you be able to dunk the basketball?
6. A diver is standing on a platform 24 ft. above the pool. He jumps form the platform with an initi8al
upward velocity of 8 ft/s. Use the formula h t −t vt s
2 ( ) 16 , where h is his height above the water, t
is the time, v is his starting upward velocity, and s is his starting height. How long will it take for him
to hit the water?
7. A ball is thrown upward from a height of 15 ft. with an initial upward velocity of 5 ft/s. Use the
formula h t −t vt s
2 ( ) 16 to find how long it will take for the ball to hit the ground.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Your posting has undeciperable gaps in it.
Cheers,
Stan H.
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