Question #ca1bc

1 Answer
Rutik Tupe
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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