PHY 241 Pre-Lab 2 PDF

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Questions and answers for physics 241 pre lab 2...

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PHY$241$ Prelab$2$ $ 1) A car is travelling with constant acceleration along a straight tract. You measure the speed of the car to be 3.3 m/s and then you wait 2 s and measure the speed again, but this time the speed is 2.5 m/s. What is the acceleration of the car between your two measurements? Answer:

-0.4 m/s

2) A car is travelling with constant acceleration along a straight tract. You measure the speed of the car to be 3.3 m/s and then you wait and measure the speed again 79 cm down the track, but this time the speed is 2.5 m/s. What is the acceleration of the car between your two measurements? Answer:

-2.94 m/s

3) Could it be that questions 1 and 2 in the prelab are describing the same two measurements of just one car? Explain. Answer:

No because the two cars have different accelerations

4) What is the final reading on the Vernier caliper shown below?

Answer:

2.51 cm...