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A school going girlis running on a horizontal road with a velocity of 4m/s. At what angle she should hold her umbrella in order to protect herself from the rains. If the rain is falling vertically with a velocity 8m/s?
Vr2=16+64=80, or Vr=8.94tanx=4/8.94=1/2.235=0.4474=24.10 degreeWEll you just bring tan on the other side, giving the value of x.
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