A rocket burns 50g of fuel per second ejecting it as a gas with a velocity of 5 xx 10 cm s^(-1). What force is exerted by the gas on the rocket?

A rocket burns 50g of fuel per second ejecting it as a gas with a velo

1.	A rocket burns 50g of fuel per second ejecting it as a gas with a velocity of 5 xx 10 cm s^(-1). What force is exerted by the gas on the rocket?
Answer» Solution :We are to calculate the upward THURST on the rocket . Upward THRUST `=v_t (Deltam)/(Delta t) : " Now " , (Delta m)/(DELTAT ) = 50 gs^(-1)` ` v_r= 5 xx 10^(5) cms^(-1)` `:. ` upward thrust `= 5 xx 10^(5) cms^(-1) xx 50 gs^(-1) = 250 xx 10^(5) " dyne " = 250 N`