1) A rocket travelling at 5.50 x 10^1 fired giving a thrust of 1.880 x 10^3N. At the end of 6.2secs its velocity was 6.378 x 10^2. What was the average mass of the rocket?
2) The force applied by the fan to a glider of mass 850g was 0.34N. How long did it take for the glider to travel 80cm...