Physics, 11.12.2020 01:30 Angelanova69134
A lab cart moves along a straight horizontal track. The graph describes the relationship between the velocity and time of the cart. A student reasons that the cart moves a greater distance from 0-4 s than it does from 16-20 s because the cart's displacement during the interval from 16-20 s is negative.
a. Which aspects of the student's reasoning, if any, are correct? Explain how you arrived at your answer.
b. Which aspects of the student's reasoning, if any, are incorrect? Explain how you arrived at your answer
c. Describe how the graph could be used to find the acceleration at t = 9s.
d. Sketch an acceleration-time graph of the cart from t= Os to t= 20 s. Clearly label the axes and include appropriate units.
e. Describe how the velocity-time graph could be used to determine the position of the cart over time. Assume the car starts at x = Om at t= Os.
f. Sketch a position-time graph of the cart from t= Os tot= 20 s. Clearly läbel the axes and include appropriate units.
Answers: 3
Physics, 22.06.2019 05:20
Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.
Answers: 2
Physics, 22.06.2019 05:30
A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?
Answers: 3
A lab cart moves along a straight horizontal track. The graph describes the relationship between the...
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