Question

Asked Sep 13, 2019

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The velocity vs. time graph for an object moving along a straight path is shown in the figure below.

(i) Find the average acceleration of this object during the following time intervals.

(a) 0 s to 5.0 s

(b) 5.0 s to 15 s

(c) 0 s to 20 s

(ii) Find the instantaneous accelerations at the following times.

(a) 2.0 s

(b) 10 s

(c) 18 s

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Step 1

According to our instructions we are supposed to answer only three sub parts of question.

If any specific sub part is to be answered please mention while posting the question

Step 2

From the given graph we can observe that the velocity of the object is constant (i.e. -8 m/s)

from “t = 0 s” to “t = 5 s” hence we can say that acceleration of is “zero” in this time period.

Step 3

We can observe from the graph, that in the time interval “t = 5 s” to “t = 15 s” the velocity of th...

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