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Kgs is a unit of mass while Newton is a unit of force, should only be compared under specific circumstances. But for normal earth conditions you get 9.81 N/kg, so 400 N is a bit below 40.7747196738 Kg.
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What is the net force 400N left 200N right?
200
What is the mechanical advantage of a jack that is able to lift a 5000N car with 400N of effort?
12.5. MA=Output Force/Input Force, so MA=5000N/400N=12.5 Note that there isn't a unit because N/N cancels out.
If someone pulls using a force of 400N in a tug of war and his opponent does the same with 400N of force what is the resulting tension?
The formula for tension is T = mg +/- ma. Thie tension on the rope is still only 400 N, regardless if one person is pulling or two people are pulling.
A boy of mass 40kg runs up a flight of 50 steps each of 10cm high in 5 sec find the power developed by the boy?
Force=m*g=40 kg*10m/s2=400N Work=F*S=400N*(50*10)cm=200000J PE=total Work done=200000J Power=Work/Time=200000/5=40000Watt
Which is heavier a kilogram of rice or a kilogram of granite?
What a strange question. A kilogram weighs a kilogram whatever the substance involved. The volume of the substance will vary though, a kilogram of gold is a cupful but a kilogram of rice is a whole bagful.
What is your browning du 28ga worth?
100-400n USD
What is the net force 400N left 200N right?
200
What is the mechanical advantage of a jack that is able to lift a 5000N car with 400N of effort?
12.5. MA=Output Force/Input Force, so MA=5000N/400N=12.5 Note that there isn't a unit because N/N cancels out.
If someone pulls using a force of 400N in a tug of war and his opponent does the same with 400N of force what is the resulting tension?
The formula for tension is T = mg +/- ma. Thie tension on the rope is still only 400 N, regardless if one person is pulling or two people are pulling.
A boy of mass 40kg runs up a flight of 50 steps each of 10cm high in 5 sec find the power developed by the boy?
Force=m*g=40 kg*10m/s2=400N Work=F*S=400N*(50*10)cm=200000J PE=total Work done=200000J Power=Work/Time=200000/5=40000Watt
Which is heavier a kilogram of sand or a kilogram of marbles?
A kilogram is a kilogram, no matter what.
Is a backpack a gram or a kilogram?
Gram
Which is heavier a kilogram of rice or a kilogram of granite?
What a strange question. A kilogram weighs a kilogram whatever the substance involved. The volume of the substance will vary though, a kilogram of gold is a cupful but a kilogram of rice is a whole bagful.
How many kilograms are in a kilogram?
Exactly one kilogram is in a kilogram.
Half of a kilogram of butter has a mass of what?
Half a kilogram is the mass in this case.Half a kilogram is the mass in this case.Half a kilogram is the mass in this case.Half a kilogram is the mass in this case.
Is a kilogram of playground sand heavier than a kilogram of marbles?
No. A kilogram is a kilogram is a kilogram. On the other hand, a kilogram of sand will most likely be a different size than a kilogram of gravel. We are told by the question though that they both weigh one kilogram, so they are the same weight.
What would have the larger mass a kilogram of lead or a kilogram of feathers?
A kilogram is a measure of mass therefore a kilogram of lead and a kilogram of feathers have the same mass: one kilogram. They would, however, have different volumes and densities.
