0.1. A particle moves 3m North, then 4m East and finally 6m South. Find the distance travelled and
the displacement.
of 30 km/h. How fast must
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Explanation:
The particle travels from a to b to c to finally, d. The displacement will be the distance from initial to final points or, from a to d.
Thus, in triangle aa'd by using pythagoras theorem
ad^2 = 3^2 +4^2 = 25
thus, displacement, ad = 5 m
the total distance travelled will be equal to ab + bc + cd = 3m + 4m + 6m
or
distance = 13 m
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