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Salisbury University

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How long will it take a 480 N motor to lift a 335 kg piano to a sixth-story window 15.0 m above?

  • Physics? -

    If you want help from an expert, please type your School Subject in the appropriate box.

  • physics -

    480 N is not a power specification. It is a force specification. Newtons (N) measure force.

    You need a specification of motor power (such as horsepower or Watts) to answer this question. Any motor can provide an arbitrary force by using levers or hydraulic pistons for mechanical advantage.

  • Grand Canyon University -

    Show that 480 W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2 m in a time interval of 1.5 s.

  • Salisbury University -

    5m

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