Question

Find the energy required to lift 150 lb to a distance of 40 ft

Answer 1

Answer:idk

Step-by-step explanation:

Answer 2

Answer:

Work done = 8295.314 Joules

Step-by-step explanation:

Given,

Mass of body ( m) = 150 lbs

We know,

1 lb = 0.454kg

So, 150 lbs = 0.454 * 150 = 68.039 kgs

m = 68.039 kgs

Also given,

Distance ( d) = 40 ft

We know that

1 ft = 0.305 m

So, 40ft = 0.305 * 40 = 12.192 m

d = 12.192 m

We know,

Work done = Force. Displacement

= F.d

F = mg

= mg.d    

where  g = acceleration due to gravity

Substituting the values

= ( 68.039 ) ( 10 ) ( 12.192 )

= 8295.314

Hence,

Work done = 8295.314 Joules