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• A typical projectile problem
  1. A projectile is fired at an angle 60â—¦ with some velocity u. If the angle is changed infinitesimally, let the corresponding fractional changes in the range and the time of flight be x and y, respectively, Then y is (A) 2/ ...
  0·1· #Physics#Mechanics
  asked2011-11-14 07:01:34