Kooplutoidn
Answered

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A crane lifts a 100 kg concrete block to a vertical height of 25 m. Calculate
the work done by the crane.

only answer if u know pls

Sagot :

Sirjushrestha7idn

Answer:

Solon,

total mass (kg)= 100kg

height (h)= 25m

acceleration due to gravity = 9.8m/s²

so,

work done =m*g*h

= 100*9.8*25

= 24,500 joule

Nuhulawal20idn

The work done by the crane in lifting the given mass of concrete to the given vertical height is 24500 Joules.

What is Work done?

Work done is simply defined as the energy transfer that takes place when an object is either pushed or pulled over a certain distance by an external force. It is expressed as;

W = F × d

Where f is force applied and d is distance travelled.

Note that, the concrete is lifted upward, Weight of the concrete becomes mass multiply by acceleration due to gravity. g = 9.8m/s²

F = Weight = mg

Given that;

  • Mass of the concrete m = 100kg
  • Distance covered/Height d = 25m
  • Work done W = ?

W = F × d

W = (mg) × d

W = ( 100kg × 9.8m/s² ) 25m

W = 980kgm/s² × 25m

W = 24500kgm²/s²

W = 24500J

Therefore, the work done by the crane in lifting the given mass of concrete to the given vertical height is 24500 Joules.

Learn more about work done here: brainly.com/question/26115962

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