ICSE − Q & A

while solving problems based on potential energy, if the value of 'g' is not given in the question , then should i take it as 9.8 m/s^2 or 10m/s^2.?

My lessons from ICSE Prelim Papers of other schools
Lesson 1: Maneckji Cooper is the most environment friendly school. They go a long way to save pages.

In oersted s experiment why are the readings different when the compass in above or below the wire?

What should be the Angle between force and displacement to get minimum work?

If we were  asked to write why the no. of pulleys in lower block is always less than the upper block ??

Can we write to increase the efficiency of the pulley??

+ 1 more questions by pratham2313  

What should be written in definition of centripetal and centrifugal force in exact words.
asked by Pratham Shah (pratham2313) 6 years ago
3

NAYA RASTA WAS EASY TODAY AND ACTUALLY IT WAS DAMN EASY IF U KNEW THE TEST WELL

Rip Stephen Hawking.
The big bang theory fans will surely miss your cameos.

hindi was really bad by the way is Hindi always counted in ""best of 5"" I am not getting proper information on the net...if any of you could shed light it would be of gr8 help

Guys help me with this-

A block and tackle system of 5 pulleys is used to raise a load of 500 N steadily through a height of 20cm. The work done against friction is 2000 J. Calculate:
1) Work done by effort 
2) Efficiency Of system
3) Displacement of the effort applied
4) M.A and V.R

Answers-
1)12000J 
2)83.3%
3)120 N
4) 4.17 and 5

Thanks a lot😁

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