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# Machines Free Doubts and Solutions

## Explain the gearsystem in a clock.

Asked by aarathi .s 17th March 2014, 9:37 AM

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## Q1. Explain the working of gears in pendulum CLOCK .

Asked by Chetan Kumar Pal 10th March 2014, 11:03 AM

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## a cook uses a fire tong of length 28 cm to lift a piece of bruning coal of mass 250 g .if he applied the effort at a distance of 7 cm from the fulcrum find the effort . take g = 10 m/s^2

Asked by karthik rao 11th January 2014, 12:21 PM

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## what is a machine?

Asked by 11th October 2013, 1:55 PM

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## In a gear system the axis of rotation cannot be

Asked by Debdeep 28th June 2013, 8:32 PM

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## what is gear ratio ?how to express the gear ratio in terms of teeth,radius and etc. of driving gear and driven gear

Asked by 7th January 2013, 6:11 PM

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## A 4m long rod of negligible weight is to be balanced about a point 126cm from one end. A load of 18kgf is suspended at a point 60cm from the support on shorter arm. (a) A weight W is placed 250cm from the support on the longer arm. Find W. (b) If W=5kgf, where must it be kept to balance the rod?

Asked by Tarangini Boedoloi 18th July 2012, 10:31 PM

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## What does not change for a machine of a given design? Efficiency, mechanical advantage or velocity ratio? Explain.

Asked by Lipi 22nd June 2012, 5:23 PM

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## steeper the inclined plane, more is the effort needed to push a load up the plane'Explainit.

Asked by pri 3rd April 2012, 5:58 PM