1. Calculate the power required to pull the sign shown if it is towed at 48 m/s and if it is assumed that the sign has the same drag force as an equivalent fl at plate. Assume standard atmospheric...

1. Calculate the power required to pull the sign shown if it is towed at 48 m/s and if it is assumed that the sign has the same drag force as an equivalent fl at plate. Assume standard atmospheric pressure and a temperature of 10°C.

2. A thin plastic panel (3 mm thick) is lowered from a ship to a construction site on the ocean floor. The plastic panel weighs 300 N in air and is lowered at a rate of 3 m/s. Assuming that the panel remains vertically oriented, calculate the tension in the cable.