Recent content by DivD

for the power required for the belt it would be 240 watts since power=F*v=240*2 since it is 40% efficient would that mean that the total power is 600 watts since 40% of 600 is 240?? and is the answer 120 N for the first three parts? or only for one of the three parts?

yea but these are just the formulas. i don't get the answer. like are my answers right? thank

i have a test tomorow and our teacher gave us an example of a problem that might be coming tomorow. the question is Sand falls on a conveyor belt at 60 kg per second and the belt moves at 2 meters per second. a) what is the force moving the sand? b) what is the magnitude of the force? c)...