Q4.An object moves from point A to B to C to D along the circle shown in the figure below .a)Find the distance covered by the moving object .b)Find the magnitude and direction of the displacement of the object.
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Answer:
17.5 km
Explanation:
Distance = Length of path travelled
=AB+BC
=15+9
=24km
Displacement = Shortest path from initial to final position
=AC
=
(AB)
2
+(BC)
2
{Pythagoras Theorem}
=
225+81
=17.5km
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