Question

Why a spanner with a long handle is preferred to tighten screw in heavy vehicles ?

Answer 1

Answer:

A spanner with a long handle is preferred to tighten screw in heavy vehicles because it required less force to be applied.

Explanation:

When a force F is applied at the end of the spanner's lever arm (which is at a distance L from the rotational axis), then moment of force or Torque is produced on the screw which is required to be tightened.

τ = F * L

Here,

τ is the Turning force or Torque.

F is the force applied which is perpendicular to the arm length.

L is the length of the lever arm.

When the length of the spanner's lever arm (i.e.,) the handle is more, then less force is required to produce the moment of force.

Answer 2

Explanation:

Answer: A spanner with a long handle is preferred to tighten screw required less force to be applied. Explanation: ... When the length of the spanner's lever arm (i.e.,) the handle is more, then less force is required to produce the moment of

in heavy vehicles because it

force.