Question #ca1bc

1 Answer
Jan 11, 2018

20 s

Explanation:

d = 100m

Since the velocity of drone 'v_d' is 10m/s and wind velocity 'v_w' is 5m/s opposite to the direction of motion of drone, the net velocity of drone becomes,

v_"net" = v_d - v_w = 10 - 5 = 5m/s#

:. t = d/v_"net" = 100/5 = 20s

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