work+and+Power+by+lauren

= = =Work and Power = W=FD W=work(joules) F=Force(newtons) D=Distance(meters) Work=force x Distance work problem: W=FD If you lift a box 5m and carie it to a loading bus 16m away, how much work is done?
 * Work output will never be higher than the work input due to friction
 * lubracating a machine will help the efficiancy by reducing friction
 * work is what you put into the machine
 * carying is not work because your force is going in a diffrent direction than the objects

if you pick up a 5n box,up and 20js of work is done how far did you lift it?

Power
P=__W T__ //P= Power(N)// __W=work(N) T=time(S)__ Power probems: P=w t if you used a power of 60N and did 20j of work how long did it take you?

if it took you 10 seconds to run up a 30m stair case with a force of 5n how much eork did you do?