Question

b) A rocket shot up reaches a height of 105.0m where an explosion causes the rocket to split into two parts that weigh 2.1kg and 0.42kg respectively. 970J of chemical energy was transformed into kinetic energy of the two parts. (i) Describe the conservation of momentum and energy and include an equation that represents this example. (ii) What is the speed of each part just after the explosion? (iii) It is observed that the two parts hit the ground at the same time. What is the distance between the points on the ground where they land? (Assume that the ground is level and neglect air resistance).

Answer 1