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Motion In Straight Line

Question

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A car travels along a straight line. For first half of time it moves with speed v₁and for the second half of time with speed v₂What is the mean speed v of the car?

Solution

Speed of the car during it's first half = v₁
Speed of the car during it's second half journey = v₂

Therefore,

Mean speed of the car is given by,

v = \frac{v_{1} + v_{2}}{2}

Some More Questions From Motion in Straight Line Chapter

What is motion?

Is absolute rest or absolute motion possible?

What is the most essential thing to study the motion of a body?

Can a body be always at rest in some frame?

Can a body be in motion in the frame associated with the body itself?

When an object in motion can be considered as particle or point object?

Can you think of physical phenomena involving the moon in which moon cannot be treated as particle?

A train is crossing the bridge. Can it be taken as a particle?

Can a train be taken a particle? Give an example in support of your answer.

A particle is moving along curved line in space. Is the motion one dimensional?

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