Respuesta :

Here's the solution,

A.) calculate work done :

we know,

[tex]weight \: = mass \times acceleration[/tex]

  • [tex]weight = 10 \times 10[/tex]

  • [tex]weight = 100 \: Newtons[/tex]

And,

[tex]work \: done = force \times dispacement[/tex]

  • [tex]work \: done = 100 \: \times \: 20[/tex]

  • [tex]work \: done = 2000 \: joules[/tex]

B.) find power :

[tex]power = \dfrac{work \: done}{time} [/tex]

  • [tex] power = \dfrac{2000}{2} [/tex]

  • [tex]power = 1000 \: watt[/tex]
evasiwila

Answer:

work done=2000J and power=1000w

Explanation:

(a) Work done= Gravitational potential energy

W=mgh

Data,

m=10kg

h=20m

g=10N/kg

W=10kg*10N/kg*20m

W=2000J or 2kJ

(b). power=work done/time

P=2000/2

P=1000w

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