An important design consideration in the two-phase pipe flow of solid-liquid mixtures is the terminal settling velocity below which the flow becomes unstable and eventually the pipe becomes clogged. on the basis of extended transportation tests, the terminal settling velocity of a solid particle in the rest water is given by vl = fl2gd(s − 1)√ , where fl is an experimental coefficient, g the gravitational acceleration, d the pipe diameter, and s the specific gravity of solid particle. what is the dimension of fl? is this equation dimensionally homogeneous?

not too sure thinking all accelerations are pointed down

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.