A 12.8 kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it

Question

A 12.8 kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 2270 J by the time the rocket motor burns all of the fuel.The acceleration of gravity is 9.8 m/s2. What additional height will the rocket rise? Answer in units of m A 12.8 kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 2270 J by the time the rocket motor burns all of the fuel.The acceleration of gravity is 9.8 m/s2. What additional height will the rocket rise? Answer in units of m A 12.8 kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 2270 J by the time the rocket motor burns all of the fuel.The acceleration of gravity is 9.8 m/s2. What additional height will the rocket rise? Answer in units of m

Explanation / Answer

Max extra height when all KE is transferred to grav.PE

2270J KE = mgh PE

h = 1945 / (12.8kg*9.8N/kg) .. .. ?h = 18.09m

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