Question
Asked Oct 16, 2019
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The position of a rabbit along a straight tunnel as a function of time is plotted in the figure.

What is its instantaneous velocity at t=10.0s?

What is its instantaneous velocity at t=30.0s?
 
40
10
30
t(s)
50
20
20
(u) x
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40 10 30 t(s) 50 20 20 (u) x

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Expert Answer

Step 1

The instantaneous velocity at a particular point is given by the slope of the tangent line drawn at the point in the position-time graph.

The tangent line drawn at t=10.0s seems to have

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rise slope run 14 m 50 s 0.28 m/s Thus, the instantaneous velocity at t 10.0s is 0.28m/s

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Step 2

The tangent line drawn at t...

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ri se slope run 25 m 20 s 1.25 m/s Thus, the instantaneous velocity at t-30.0s is 1.25m/s

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Science

Physics

Newtons Laws of Motion

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