Recent content by souro11

Well , I understand what you are saying . But then do you admit that Relative Speed is a misnomer or meaning less term ? Actually this is supposed to be a trick question. So I thought maybe the trick was in the use of the term 'speed' . Let's see how it is corrected.

No . Speed is the total distance covered in ANY direction divided by the time interval . It depends on only the distance covered ( which has no direction ) and time interval ( which again has no direction ) I just don't get why the hell do we need to get the velocities to get a speed ? When we...

We can never assign an algebric sign to speed . Hence we are interested in addition or subtraction of magnitudes from one another . When we are adding speed we are adding the magnitudes of the velocities WITHOUT putting any algebric sign in before them . Thus in this specific problem , SPEED...

No! In both cases , whether the ball is thrown towards the east or west , the SPEED of the ball relative to the train is going to be 50 mph . Since the train is moving at a speed 50 mph w.r.t ground , the speed of the ball w.r.t ground in any case is going to be 50+50 = 100 mph . We are talking...

This problem came in an exam . An object is approaching a mirror with a SPEED V . Find the SPEED of the image relative to the object . My solution - The object approaches the mirror with a SPEED V relative to the ground . Thus the image approaches the object with a SPEED V relative to the...

Then the temperature of the body does rise , even if very little , when set into motion ?

But modern definition of temperature , even Wikipedia says ' temperature is a measure of the average kinetic energy of the molecules ' ... Hence , when a body moves , it's total K.E increases . Hence average K.E of molecules also increases and thus temperature rises ?

I have problems understanding WHEN mechanical work will be converted to heat . If a body moves , will there always be a rise in temperature , even if negligible ? If not , then read this Problem I recently came across , with the solution too : " From what height must a mass of ice be...