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## plz explain this to me

Asked by lovemaan5500 19th November 2017 6:18 PM

### ICSE X Physics

Asked by puspitabiswas45 12th January 2018 9:35 PM

## What is the power of a machinethat can lift a load of 750N through 15m in 5 sec? What must have been the effort applied? Obtain the M.A. and V.R. of this machine. Assume the machine to be an ideal one and take the distance moved by the effort as 45m.

Asked by bdroy_2014 25th January 2018 1:16 PM

## Q 5 a part

Asked by lovemaan5500 13th March 2018 7:07 AM

## What will be the utility of a machine when its  mechanical advantage  is less than 1  is equal to 1

Asked by lovemaan5500 13th March 2018 7:31 AM

## Explain why scissors for cutting cloth may have blades longer than the handles but shears for cutting metals have short blades and long handles

Asked by lovemaan5500 13th March 2018 2:05 PM

## A load of 75 kgf is raised with a Pulley system with an effort of 25 kgf what is the mechanical advantage, velocity ratio,efficiency of the system

Asked by Samrat 30th June 2018 8:51 PM

## Calculate the mechanical advantage of a Lever which has an effort arm of 60 cm and a load arm of 4 cm what is the Velocity ratio of lever

Asked by Samrat 30th June 2018 8:53 PM

## An effort of 50 Newton applied at one end of a Lever raises a load of 1000 Newton at the other end a.what is the mechanical advantage of the lever b.what is the velocity ratio c.load by 1 cm how far must the effort move

Asked by Samrat 30th June 2018 9:04 PM

## A man loses a 2.5 M long crowbar to raise a 100 kg mass such that load arm is 0.5 CM the distance moved by the effort is 0.1 M find a.effort needed to lift a load B. Mechanical advantage of crowbar c.the work done by the effort d.distance the load is raised  e.the work done on the Load f. the efficiency of the crowbar

Asked by Samrat 30th June 2018 9:10 PM

## Block and tackle has four pulleys draw diagram of pulley system a man exerts a pull  of 240 Newton to lift a load of 720 N calculate mechanical advantage velocity ratio and efficiency

Asked by Samrat 30th June 2018 11:15 PM

## A Pulley  system lifts a load of 1200 Newton by an effort of 250 Newton if the load due to movable part of machine is 300 N find the mechanical advantage , ideal  ,velocity ratio ,number of pulleys and efficiency

Asked by Samrat 30th June 2018 11:23 PM

## An effort of 15 Newton applied at one end of lever raises a load of 1000 N at the other end what is M.A,V.R ,to raise  load by 1 cm how far must the effort  move

Asked by Samrat 30th June 2018 11:28 PM

## FIND THE NUMERICAL THE BLADES OF A PAIR OF SCISSORS ARE 20 CM LONG, WHILE ITS HANDLES ARE 10 CM LONG. FIND ITS MECHANICAL ADVANTAGE.

Asked by rajinder.rs758 27th August 2018 8:14 PM

## Between pliers and scissors, which one has mechnaical advantsge less than one?

Asked by jaiswalsindhuli717 23rd September 2018 3:49 PM