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To lift a 950-N load 3 meters requires (950 x 3) = 2,850 joules of energy.The power is the rate at which the energy is delivered. It takes more powerto lift the load faster.The power used to lift this load is (2,850 joules) divided by (the number of seconds it takes),and the unit of the answer is watts.
200 newton-meters per second = 200 watts.
Weight of a mass of 50 kg = [ m g ] = (50 x 9.8) = 490 newtons.Work = force x distance = 490 x 4 = 1,960 newton meters = 1,960 joules
1.542 meters.
3.048 meters by 3.048 meters
10 METERS
24000 joules
Work is expressed in Joules, or a Newton meter. So to lift the log five meters would take 25 kiloJoules.
That takes 80 foot-pounds, equivalent to about 59 joules.
25,000J
faggio
Any upward force greater than 78 lbs will accelerate that person vertically upwards.
I believe it is approximately 1.13 cubic meters (1.13 litres will lift 1 gram; do the math.
minimum 150 joules
88.2 J
3000
200 kg car^^