A boy moves 3km along a straight line and then takes
a left furn througy 90° and moves for another 4km
Find the magnitude of displacement.
1) 7km 2)4km 3) 3km 4)5km
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The magnitude of displacement is pythagoras theorem.
Magnetude of displacement =√( 3² + 4²)
= √( 9 + 16)
= √(25)
= 5km
The magnitude of displacement is 5km.
option 4.
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