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8. Describing motion
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Q3 of 14 Page 104

Solve

An object changes its velocity from 30 ms-1 to 40 ms-1 in a time interval of 2s. What is its acceleration?


Given,
initial velocity(u) = 30 ms-1
final velocity(v) = 40 ms-1
time(t) = 2 s
Thus,

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2

Fill in the blanks with suitable words

If an object starts from ‘A’ and comes back to ‘A’, its displacement will be __________ .

3

Solve

An object is moving in a circular path of radius 3.5m. If it completes one full cycle, what will be the displacement and what is the distance travelled?

3

Solve

An object at rest starts moving. It covers a distance of 2m in one second. It covers a further distance of 5 m in two seconds in the same direction. What is its average velocity and acceleration?

4

Answer the following

If a body is moving with uniform velocity in a given direction its acceleration will be zero. Why?

Questions · 14
8. Describing motion
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