Question

A body travel a distance of 5m from p to q and then moves a distance of 10 m at right angle at pq. Calculate the total distance and resultant displacement

Answer 1

answer : distance = 15m

and displacement = 5√5 m

explanation : see figure, A body travels a distance of 5m from P to Q and then moves a distance of 10m at right angle at PQ.

so, distance covered by body = length of PQ + length of QR

= 5m + 10m = 15m

displacement is the minimum separation from final position to initial position.

so, resultant displacement covered by body = length of PR

from Pythagoras theorem,

PR² = PQ² + QR².

= 5² + 10² = 125

or, PR = √125 = 5√5 m

hence, resultant displacement = 5√5m

Answer 2

Answer:

Distance = 15m

Displacement = 5√5m

Explanation:

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