Homework - 9/29/10

A blood-thirsty bear has spotted some innocent campers and decided to attack and maul them. The only thing stopping him is a small creek. The side the bear is jumping from is 2 meters high and he is running with a velocity of 13.5 m/s. If the bear jumps horizontally, how far away will he land from where he jumped? Do you think he'll make it across the creek to kill the campers?

Remember: For full credit, you need to include the diagram, mathematics, and explanation to fill the entire page. For the explanation, remember to explain how you knew which equation to use and whether your answer seems reasonable.

Homework - 9/27/10

A bear is at a local park, drowning his sorrows the way he knows best - by drinking a mug of honey. Sad that his bear family has deserted him and that his bloodlust for humans has made him a fugitive, he slides the mug down the table in frustration. The tabletop is 0.86 meters high and the mug slides off the table horizontally with a velocity of 3.2 m/s. Find how far away from the base of the table the mug hits the ground.

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Remember: For full credit, you need to include the diagram, mathematics, and explanation to fill the entire page. For the explanation, remember to explain how you knew which equation to use and whether your answer seems reasonable

Homework - 9/20/10

The man trying to set the new world record for fastest falling human is planning to jump from rest and reach a speed of 340 m/s (the speed of sound).
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(a) Determine how much time it will take to reach that speed.
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(b) Determine how far he will fall to reach that speed.

Remember: For full credit, you need to include the diagram, mathematics, and explanation to fill the entire page. For the explanation, remember to explain how you knew which equation to use and whether your answer seems reasonable.

Homework - 9/1/10

A sailboat is being constantly accelerated at 3 m/s2. The wind continues to accelerate the boat, causing it to travel 517 meters in 15 seconds. What was the velocity of the boat before the wind started pushing it?

Remember: For full credit, your solution should fill the entire page and should include (1) a diagram, (2) words, and (3) math. In your explanation, you should explain how you knew which equation to use and how you solved for the final answer. You should also state whether your final answer is reasonable or not. For example, a speed of 1,000m/s is not a reasonable speed for a sailboat because they're usually much slower.