A rocket raises vertically in such a way that, t seconds after lift-off, it is h(t)=-1/2tsquar+30t metres above the ground. a.how high is the rocket after 40 seconds. b.what is the average velocity of the rocket over the first 40 seconds of the flight between t=0 and t=40
@@MathematicsTutor so by definition velocity is the rate of change of position not displacement as rate of change of displacement carries no meaning, displacement itself is the change in position.
@@MathematicsTutor hope displacement comes only when a body is displaced i e changes its position, velocity seems to be rate of change of position, can u verify the definition from any standard physics book, thanks
Thanku you sir I was not able to find such good questions
Beautiful in-depth teaching style. Thank you!
very nice explanation Sir
You teach very well ☺️ thanks
A rocket raises vertically in such a way that, t seconds after lift-off, it is h(t)=-1/2tsquar+30t metres above the ground. a.how high is the rocket after 40 seconds. b.what is the average velocity of the rocket over the first 40 seconds of the flight between t=0 and t=40
speeding is not in american english. Do you mean speeding up ???
Speeding means accelerating
how poistion is same as displacement in the beg5of the video
Initial value is zero. That is the reason. Hope that helps. Thanks
@@MathematicsTutor so by definition velocity is the rate of change of position not displacement as rate of change of displacement carries no meaning, displacement itself is the change in position.
@@sachinrath219 velocity is rate of change of displacement. The function also represents displacement as at t = 0 position is also zero. Thanks
@@MathematicsTutor hope displacement comes only when a body is displaced i e changes its position, velocity seems to be rate of change of position, can u verify the definition from any standard physics book, thanks
pl check the definition in en.m.wikipedia.org/wiki/Velocity
Thanks