1. Wind speed is 150 km/h, or 42 m/s Velocity of 2×4 = m/s Force exerted by 2×4 on wall = N 2. Wind speed is 325 km/h, or 90 m/s Velocity of 2×4 = m/s Force exerted by 2×4 on wall = N 3. What force is exerted by the wall on the 2×4 board when wind speed is 150 km/h? Force exerted on 2×4 = N
