One of the tasks of the Mighty Hercules was to protect the town of Nemea from a lion. One day Hercules sees the lion 320 feet away. He strings his bow and lets an arrow fly. The arrow leaves his bow travelling at 210 feet per second from a height of 6 feet. He wants to hit the lion in the neck above the shoulders which is 4 feet off of the ground. Verify with calculations that if Hercules uses a launch angle of 20 degrees he will overshoot the lion. Play around with different launch angles until you find the one that will hit the lion where he wants. You will need to be accurate to the hundredths place (two places after the decimal). For example, if you get 31 degrees will hit 4.7 that is too high. You might have to use 30.97 to get closer to exactly 4. Show all attempts that you made until you get the right angle.
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
One of the tasks of the Mighty Hercules was to protect the town of Nemea from a lion. One day Hercules sees the lion 320 feet away. He strings his bow and lets an arrow fly. The arrow leaves his bow travelling at 210 feet per second from a height of 6 feet. He wants to hit the lion in the neck above the shoulders
which is 4 feet off of the ground.
- Verify with calculations that if Hercules uses a launch angle of 20 degrees he will overshoot the lion.
- Play around with different launch angles until you find the one that will hit the lion where he wants. You will need to be accurate to the hundredths place (two places after the decimal). For example, if you get 31 degrees will hit 4.7 that is too high. You might have to use 30.97 to get closer to exactly 4. Show all attempts that you made until you get the right angle.
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