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...
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...