How to Convert Watts Into Newtons

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A watt is the rate of power of a system that transfers a joule of energy each second. A newton is the force of a system that transfers a joule of energy over the length of a meter. To convert from power to force, you therefore need to consider the time that a system runs and the distance that it covers. You also must use metric units because watts and newtons were designed around the metric system.

  • Multiply the system's power rating by the length of time it spends moving. For example, if a 500 watt system runs for 10 seconds: 500 --- 10 = 5,000. This is the amount of energy that it transfers, measured in joules.

  • Convert the distance the moving object travels from feet to meters by multiplying by 0.305. For example, if if covers 20 feet: 20 --- 0.305 = 6.1 m.

  • Divide the energy that the system transfers by the distance that it covers: 5,000 ÷ 6.1 = 819.67. This is the system's force, measured in newtons.

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  • Photo Credit Medioimages/Photodisc/Photodisc/Getty Images
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