MOMENTS QUESTIONS PLEASE?

A moment is a rotational force (also known as torque) calculated by multiplying the force exerted by the distance from the point of rotation. T (torque) = r (radius) x F (force applied)

So, to answer your first question, the moment (rotational force) applied to the nut is greater the longer the spanner given the same amount of force applied by the mechanics hand.

Let's say 50,000N-cm is required to loosen the nut: if the spanner/wrench is 50cm, the mechanic would have to apply 1000N (50cm x 1000N = 50,000N-cm), but if the tool is twice as long, 100cm, the mechanic would only hanve to apply half as much force, 500N (100cm x 500N = 50,000N-cm)

For the second question, simply multiply the force and length of the spanner to get the result.

moment = force * distance of point from application of force * sin of angle b/w dem

1, using a long spanner wud result into more moment of force, thus making it easier to undo a tight nut ( distance of ........force increases)

2. the moment of force = 200 * 200/100 = 400 N-metre

a burnen burner has a wide heavy base

dont know