...2D Kinematics

This assignment is due before 9 AM, Wednesday Sept 6.

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The following three questions refer to the material you were to read in preparation to the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle.

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1.

To attain the maximum range a projectile has to be launched at 45 degrees if the landing spot and the launch spot are at the same height (neglecting air resistance effects.)
Explain in a few sentences how the relation between the vertical and the horizontal components of the initial velocity affects the projectile range?

2.

On the Moon the acceleration due to gravity is about one sixth that on Earth. If a golfer on the Moon imparted the same initial velocity to the ball as she does on the Earth, how much farther would the ball go?

3.

A cat, starting from rest, jumps from the ground and just clears a 4 foot fence. This information is sufficient to calculate
the takeoff speed of the cat.
the time the cat will be in the air.
the horizontal distance of the jump.
none of the above.

Below is a space for your thoughts, including general comments about today's assignment. What was hard or confusing (or cool)? What would you like to spend extra time on in class? Do you see how this subject fits in with the others we have discussed?

You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.