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Author Question: A strobe photograph shows equally-spaced images of a car moving along a straight road. If the time ... (Read 30 times)

asd123

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on: Jul 28, 2018
A strobe photograph shows equally-spaced images of a car moving along a straight road. If the time intervals between images is constant, which of the following cannot be positive?
 a. the speed of the car
  b. the average velocity of the car
  c. the acceleration of the car
  d. the direction of motion of the car

Question 2

An object moves along the x axis, with its position given by the function x(t) =  t3 . Which of the following can be obtained from a graph of x vs. t?
 a. The velocity of the object at any instant in time
 b. The displacement of the object during a specified time interval
 c. The speed of the particle at any instant in time
 d. The average velocity of the object during as specified time interval
  e. All of the above


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lcapri7

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Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

e


asd123

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Reply 2 on: Jul 28, 2018
:D TYSM

ghepp

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Reply 3 on: Yesterday
Excellent

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