Determine the work done by a crane lifting an 18,000 pound truck 48 inches.

Question

tylerd · Answer

i already answered this one the previous time you posted it

tylerd · Answer

work = force x distance

pounds = weight which is a force.

anonymous · Answer

so how do you solve it???

tylerd · Answer

first convert 48 inches to feet

anonymous · Answer

why???

tylerd · Answer

because the unit for work is either foot pounds or newtons. because these arent SI units, im assuming the answer needs to be in foot pounds.

anonymous · Answer

ok well then how do you solve this:

anonymous · Answer

oh wait nvm

anonymous · Answer

wait actually what the hell, I'll just ask

tylerd · Answer

convert 48 inches to feet, then multiply that by 18000

anonymous · Answer

this is a Braking Force question btw

A 500-pound motorcycle is headed up a hill inclined at 12 degrees. What force is required to keep the motorcycle from rolling back down the hill when stopped at a red light???

tylerd · Answer

500sin(12)

tylerd · Answer

http://www.engineerstudent.co.uk/Images/free_body.svg.png

anonymous · Answer

so for work we use cos
and for breaking force we use sin?

tylerd · Answer

no, work = force times distance

breaking force is just a force.

tylerd · Answer

this question u last asked was an inclined plane problem

anonymous · Answer

oh, well thxs for answering it