2) A car travels 5 km towards north than turns right and travels 3km further, the car again turns right and travel 1 km and comes to rest. What is the distance travelled and displacement of the car?
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Answer:
Distance travelled is = 9 km
and displacement is = 5 km
Explanation:
total travelled distance is equal to sum of distance travelled
but when you are asked about change in position or displacement use directional sense see in fig
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EXPLANATION:-
A)Distance:-
Distance will be simply :-
5+3+1
9 km
B)Displacement
(kindly see attachment for the path of the car)
So Line DC is displacement
And by phythagorus theorem:-
DC²=DE²+EC²
DC=?
DE=4 km
EC=3 KM
So,
DC²=3²+4²
DC²=9+16
DC²=25
DC=√25
DC=5
So the displacement is 5 km and displacement is 9 km
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