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Motion In Straight Line

Question
CBSEENPH11016973
Wired Faculty App

In the figure shown here, find the displacement and distance travelled by particle in going from P to Q.

Solution

Displacement of partcle is, 
straight S with rightwards harpoon with barb upwards on top equals 10 space straight m comma space along space PQ with rightwards harpoon with barb upwards on top space direction.
Distance traveled by particle is, 
D i s t a n c e italic equals italic space P L italic space italic plus italic space l e n g h t italic space o f italic space a r e italic space stack L K Q with italic overbrace on top
             equals 10 plus fraction numerator 3 straight pi over denominator 2 end fraction straight x 10
              = 57.1m

Some More Questions From Motion in Straight Line Chapter

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?

State which of the following are examples of one, two or three dimensional motion: 

(a) A kite flying in the sky.

(b) The earth revolving around the sun. 

(c) A train moving along the equator of the earth in clockwise direction. 

(d) Accelerated motion of a particle in a straight line.

Define distance.

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