A rocket is fired vertically upwards with initial velocity 40m/s at the ground lvl.Its engines then fired and it is accelerated at 2m/s^2 until it reaches an altitude of 1000m.At that point the engines shut off and the rocket goes into free fall.Find the velocity of ball when it is...
In the preparation of iron from haematite (Fe2O3) by the reaction with carbon. Fe2O3 + C --> Fe + CO2