Question

. A spanner uses the principle of moments. What is meant by the principle of moments?
B. David uses a spanner to try to turn a bolt. He pushes the spanner with a force of 50 N at a distance of 0.3 m from
the pivot, as shown in the diagram. Calculate the moment which results from this push on the spanner.
C. The bolt does not turn with this push of 50 N. David knows that using a longer spanner will make the bolt more
likely to turn with the same push of 50 N. Explain why.

Answer 1

Answer:

none david quits he thinks it is useless

Answer 2

Answer:

a.The turning effect of a force is known as the moment. ... The spanner increases the distance between the fulcrum and the line of action of the force, thus for the same force a greater moment is obtained.

(b)It’s a system of parallel forces.

Number (c) refer from attachment.