Question

A pair of scissors used to cut cloth has a handle of length 3cm. If the distance between the tip of the blades and he rivet is 12cm, find the MA. Also find the load it can overcome if the effort applied the handles is 15gf.​

Answer 1

A pair of scissors used to cut cloth has a handle of length 3cm. If the distance between the tip of the blades and he rivet is 12cm, find the MA

Answer 2

$\Large\mathtt\green{ }\huge\underline\mathtt\red{Answer : }$

Effort arm = 2 cm

Load arm = 8.0 cm

Given effort =10kgf

(i) Mechanical advantage M.A =

28= 0.25

(ii) load = M.A × effort = 0.25 × 10 = 2.5 kgf

The pair of scissors acts as a speed multiplier because MA < 1.

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