Aforklift raises a box above the floor and does 2,000 j of work. if the forklift motor consumes 3,000 j of electrical energy from the battery to raise the box, what is the efficiency of the lift?

Efficiency = (useful output energy) / (input energy)

Efficiency = (2,000 J) / (3,000 J)

Efficiency = 2/3

or

Efficiency = 66.7%

the body's situation won't change the forces are equal opposit and on the same body

graphing motion: mastery test

209be

what is the instantaneous acceleration of

the particle at point b?

0 meters/second?

10 meters/second?

12 meters/second?

velocity imetersisecond

15 meters/second?

20

time (seconds)

answer: 0 meters/second^2