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# Force And Pressure Free Doubts and Solutions

## the displacement - time graphs for the particles A and B are straight lines inclined at angle of 30 degree and 60 degree with the time axis as shown in figure. what will be the ratio of the velocities Va:Vb ?

Asked by Hrishikesh marathe 13th June 2016, 5:09 PM

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## A car accelerates from rest at a constant rate for some time after which it decelerates at a constant rate and comes to rest. if the total time elapsed is 't' then prove that maximum velocity acquired by the car is                                                           t                                     =                                                                               (  )

Asked by Hrishikesh marathe 13th June 2016, 7:30 AM

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## P and Q are two blocks of different metals .They have the same volume but block P has twice the mass of block Q. When given identical quantities of energy, their temperature rise by the same amount. Which one of the following statment is true? Also give the explanation.   The density of P is half that of Q. The density of P is the sane as that of Q. The specific heat capacity of P is half that of Q. The specific heat capacity of P is the same as that of Q.

Asked by Petulla Mishra 1st February 2015, 11:16 AM

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## why do astronauts were special suits

Asked by dipakthapa37 24th August 2014, 10:11 PM

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## when a magnet clings an iron rod is it contact force

Asked by aryandolas.312 8th April 2014, 1:49 PM

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## what do you mean by force cause because of effact . plaese give one example

Asked by Hitesh Sharma 17th March 2014, 9:10 PM