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Question

The velocity-displacement for a jet plane on a straight runway is shown in. Determine the speed and acceleration of the jet plane at $$s=150m$$
1206996_944f28c1b5374175aa06ffa9e1b68cb7.png


A
3m/s2
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B
5m/s2
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C
9m/s2
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D
43m/s2
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Solution

The correct option is B $$5m/s^2$$
The velocity -displacement for a jet plane on a straiht run way is shown
Now, determination of speed of acceleration of jet plane at $$s=150m$$
$$a=\cfrac{\Delta V}{\Delta t}$$
From the fraph it is clear that,
$$a=\cfrac{250-200}{60-50}\\ \quad=\cfrac{50}{10}=5m/s^2$$

1221515_1206996_ans_bcb2bbb6fa324f4e83a8959ad4a779a1.png

Physics

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