Answer Happy

QUESTION 20 2 - Calculate the approximate force on a five square meter of sail, given the horizontal velocity of the wind is 5.00 m/s parallel to its front surface and 2.50 m/s along its back surface. Take the density of air to be 1.2 kg/m³. A) 56.2 N B) 15.3 N C) 42.8 N D) 68.5 N