weight KN and tonnes

[desired_affect]

How many Kn's are there in a tonne, or point what of a tonne is it?? its a measurement Ive never had to work with before so have really no idea.

[Peter]

One kN is equivalent to to a static load of 100 kg. Therefore 22kN is equivalent to a static load of 2.2 tonnes.

 

The difference is that a kilogramme is measurement of mass, whereas a kilonewton is a measurement of force.

 

Therefore if you drop a 1 kg weight, it exerts more than 1 kN of force on impact, even though its mass remains the same.

[desired_affect]

thank you, been trying to get my head around that for ages.

[Rupe]

Dont forget the difference bettween a tonne, a ton, and an american tonne!

[desired_affect]

danm americans

[b101uk]

One kN is equivalent to to a static load of 100 kg. Therefore 22kN is equivalent to a static load of 2.2 tonnes.

 

The difference is that a kilogramme is measurement of mass, whereas a kilonewton is a measurement of force.

 

Therefore if you drop a 1 kg weight, it exerts more than 1 kN of force on impact, even though its mass remains the same.

 

 

1000N = 1KN = 98.0665KG

 

e.g. 22KN = 2157.463KG (2157.463KGF) = 2.157463 Tonnes

 

[Peter]

Close enough.

[Mesterh]

How is it you work out the force and or weight of an object when dropped? I know it has something to do with gravity

 

Ie if you drop a 10kg log 10 metres what would it sort of way when it hits someone on the head...sorry the floor.

[b101uk]

10kg would drop ~9.80665m meters in ~1 second from rest

 

~9.80665m/sec = ~588.399m/min = ~35303.94m/hour or ~35.30394kph = ~21.9279mph

 

at 9.80665m drop the force of 10kg would be ~480.4595798J, if it was to stop in 1cm it would impart a force of ~4.8045 tonnes.

[Mesterh]

10kg would drop ~9.80665m meters in ~1 second from rest

 

~9.80665m/sec = ~588.399m/min = ~35303.94m/hour or ~35.30394kph = ~21.9279mph

 

at 9.80665m drop the force of 10kg would be ~480.4595798J, if it was to stop in 1cm it would impart a force of ~4.8045 tonnes.

 

 

Bleedin hell nearly five tonne of force

 

How did you get the 4.8045 tonne from the 10kg:confused1: