Pankaj Bhatt Solutions for Chapter: Machines, Exercise 1: QUESTIONS

What is the relation between mechanical advantage and velocity ratio for an ideal machine.

A fire tong of length $35 \mathrm{cm}$ is used to lift a piece of burning coal of mass $300 \mathrm{g}$. What minimum effort is required at distance $15 \mathrm{cm}$ from the fulcrum for this purpose (in $\mathrm{kgf}$)?(Write only the numerical value of answer)

The figure below show a human foot. Mark the positions of load, effort and fulcrum in the foot. Name the type of lever foot.

The figure below shows a uniform meter scale in equilibrium position. State with reason if the weight of the scale is more than, equal to or less than the weight of mass $\mathrm{M}$.

The diagram below shows a lever in use. Name the class of lever in use.

The diagram below shows a lever in use. Calculate its mechanical advantage. (Write the answer up to two decimal points)

The diagram below shows a lever in use. $k \mathrm{kgf}$ effort is used to overcome this load. The value of k is _____.

The figure below shows a mango cutter in use. Mark the positions of load, effort and fulcrum in figure. Name the type of lever.