CharlieJP5072 CharlieJP5072
  • 04-12-2017
  • Physics
contestada

What is the power involved in lifting a 10-kg object 1.0 m in 0.50 s?

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CrypticGeek
CrypticGeek CrypticGeek
  • 17-12-2017
In this question, we know that mass= 10 kg = 10 x 1000 = 10,000 g
Distance = 1 m and Time = 0.5 s

Power = Force x Velocity
Velocity = Distance / Time = 1 m / 0.5 s = 2 m/s
So, Power  = Force x (Distance / Time)
But Force= Mass x Acceleration due to gravity (g)
So, Force = 10 kg  x 9.8 m/s[tex] ^{2} [/tex] = 98
Therefore, Power =Force x Velocity= 98 x 2 = 196 W
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