What power (in horsepower) is developed by a grinding machine whose wheel has a radius of 8.10 in and runs at 2.50 rev/s, when the tool to be sharpened is held against the wheel with a force of 43.0 lb? The coefficient of friction between the tool and the wheel is 0.340 .
Help!! I have no idea how to even start this!!
1 answer
Velocity radius over time taken = v=2.50+8.10=10.60 v2=43.0+0.340=0.770 10.60/20.370=0.5203731
3 answers