finding resultant speed and angle path? (M1)?

happyclouds

New member
hey sorry i'm really stuck on this question :/

jill is swimming across the river which has a constant current of k ms^-1
if jill heads directly across the river with the speed V ms^-1. find her resultant speed and the angle her path makes with a line directly across the river when:

a) k=0.5, v=1

please explain it as well

thank you
 
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