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“The aerial distance between two towers is 4km. But speedometer of car shows 5.6km when travel from one tower to another” 1. By reading this statement explain the concept of distance and displacement. 2. What is the numerical ratio of displacement of object to distance? Explain. 3. A particle is moving along a circular trace of radius ‘R’. What is the distance travelled and displacement of the particle in half revolution? |
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Answer» 1. Distance and the length of the path covered by the object. It is a scalar quantity. Displacement is the length between initial point and final point. 2. \(\frac{dispalcement}{distance}≤1\) For the straight-line path, displacement is equal to the distance travelled. But for the curved path displacement is less than the distance travelled. 3. distance = πR displacement = R + R = 2R. |
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