Saturday 7 May 2022

Scale Force

 

Scale Force is the highest waterfall in the district. The name is very Physics. We read from scales and talk about scale divisions. I wondered what could be done with the force of the water. Now Newton's Second Law can be say that force is equated with the rate of change of momentum which for a stream of water hitting an obstacle becomes the speed at which it hits x mass flow rate. Technically the speed at which the waterfall hits the bottom could be calculated by suvat but the air resistance is likely to affect that. So I favour putting weighing scales under the falls to record the force - hence Scale Force. Then record volume flow rate by timing how long a bucket takes to fill. Mass flow rate = volume flow rate x density of water. These readings would allow speed to impact to be calculated and that could be compared to the suvat value.