Fuel was consumed at a steady rate of 5.0 x 10-2kg per second in a rocket engine and ejected as a gas with a speed of 4 x 103ms-1. Determine the thrust on the rocket
-
A.
20N -
B.
80N -
C.
200N -
D.
800N
Correct Answer: Option C
Explanation
F = ma = (frac{mv}{t} = frac{5 times 10^{-2} times 4 times 10^{3}}{1})
= 200N