Rocket Thrust Calculation – Rankers Physics

Uncategorized: Practice Problem & Solution

In a rocket, fuel burns at the rate of \( 1 \text{ kg/s} \). This fuel is ejected from the rocket with a velocity of \( 60 \text{ km/s} \). This exerts a force on the rocket equal to: (1994)
\( 6000 \text{ N} \)
\( 60000 \text{ N} \)
\( 60 \text{ N} \)
\( 600 \text{ N} \)

Solution Explained:

To solve this problem, we apply the core principles of Uncategorized. Understanding the underlying formula is key to arriving at the correct answer below:

Thrust force \( F = v_e \frac{dM}{dt} \). Given exhaust velocity \( v_e = 60 \text{ km/s} = 60000 \text{ m/s} \). Given rate of fuel consumption \( \frac{dM}{dt} = 1 \text{ kg/s} \). \( F = 60000 \text{ m/s} \times 1 \text{ kg/s} = 60000 \text{ N} \).

Leave a Reply

Your email address will not be published. Required fields are marked *

Similar Practice Questions

Explore conceptually related problems to test your knowledge.

1. The power radiated by a black body is $P$ and it radiates maximum energy at wavelength, $\lambda_0$. If the temperature of the black body is now changed so that it radiates maximum energy at wavelength $\frac{3}{4}\lambda_0$, the power radiated by it becomes $nP$. The value of $n$ is: (2018)
2. In the adjoining figure, four capacitors are shown with their respective capacities and the P.D. applied. The charge and the potential difference across the 4μF capacitor will be :- (approximately)
3. The angle between the electric lines of force and the equipotential surface is: (2002)
4. 42. Two conducting circular loops of radii $R_1$ and $R_2$ are placed in the same plane with their centres coinciding. If $R_1 >> R_2$, the mutual inductance M between them will be directly proportional to: (2021)
5. 37. Which one among the following shows particle nature of light: (2001)