A position-time graph for a particle moving along the x axis is shown in Figure P2.7. (a) Find the average velocity in the time interval t = 1.50 s to t =4.00 s. (b) Determine the instantaneous velocity at t =2.00 s by measuring the slope of the tangent line shown

2.7 A position-time graph for a particle moving along the x axis is shown in Figure P2.7. (a) Find the average velocity in the time interval t = 1.50 s to t =4.00 s. (b) Determine the instantaneous velocity at t =2.00 s by measuring the slope of the tangent line shown








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  1. sdahlin24 de agosto de 2020, 0:37

    where did you get the 2m adn 8m from?

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  2. Cheeseman5 de septiembre de 2020, 14:50

    Where did you get -13 from? And yeah can you elaborate on how you got 2 from?

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    1. FisMat Tutores5 de septiembre de 2020, 23:35

      we take the values where the slope touches the x and t axis, in that case if we want to know the slope we just take the difference (x2-x1)/(t2-t1)= (13-0)m/(3.5-0)s

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  3. Unknown20 de abril de 2021, 1:39

    how did you get the 4s in letter c?

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    1. FisMat Tutores20 de abril de 2021, 15:23

      if you see the graph carefully , the velocity is zero at t=4s since the slope at that time is plane.

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