asked 231k views
4 votes
a machine uses a force of 200 Newtons to do 20000 joules of work in 20 seconds find the distance the object moves and the power of the machine

asked
User Mirelon
by
8.4k points

1 Answer

6 votes
Distance = 100 meters Power = 1000 watts Work is defined as force over distance. So we have the following equation: W = F * D Solving for D and the substituting the known values and calculating W = F * D W/F = D 20000 J/200 N = D 20000 Nm/200 N = D 100 m = D So the work was done over a distance of 100 meters. Power is work over time, so just divide the number of Joules performed by the time it took to perform the work. So 20000J / 20s = 1000 J/s = 1000 W So the machine has 1000 watts of power.
answered
User Theowi
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8.1k points
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