PreLab exp3a10

# PreLab exp3a10 - (a Suppose the apparatus in the laboratory...

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Name ________________________ lab section ______________ Phys E-1a Pre-Lab Questionnaire Fall 2010 Experiment 3: Conservation of Energy & Projectile Motion 1. In the lab handout, Equation [5], the range equation, does not contain g . However, the equation for the range derived in lecture and in problem 57, page 83 of Giambattista , shows that R is inversely proportional to g . How do you reconcile these two seemingly contradictory statements? Justify your answer. 2. Similarly, mass does not enter into the equation for the range. Explain why not. 3. Referring again to the lab handout, why should the plus sign be chosen in Eq. [4a] as the solution to Eq. [4]?

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4. Consider the following two hypothetical experiments:
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Unformatted text preview: (a) Suppose the apparatus in the laboratory is set up so that the ball is released from a height of 40 cm above the table top. The hot wire cuts the Saran Wrap 10 cm above the table. The table is 100 cm above the floor. The experiment is performed on the Earth and then repeated exactly on the Moon. In which case do you find the greater range? Justify your answer. (b) Suppose a ball is fired from a cannon 110 cm above the ground at an angle of 45 degrees above the horizontal and has an initial speed of 3 m/s. The experiment is performed on the Earth and then repeated exactly on the Moon. In which case do you find the greater range? Justify your answer....
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PreLab exp3a10 - (a Suppose the apparatus in the laboratory...

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