Your answer is OK except no - sign. The problem implicitly asks for a magnitude.subopolois said:Homework Statement
Rocket engine expends 1150 kg of gas in 1 second, with a velocity of -4.50×10^4 m/s. Calculate the average force exerted on the rocket by the gas during that 1.0 second interval
Homework Equations
F= m(delat)v / (delta)t
The Attempt at a Solution
F= (1150kg)(-45000m/s) / 1 s
-5.175 x 10^7 N
The average force on a rocket is the total force exerted on the rocket during its entire flight divided by the time it takes to complete the flight.
The average force on a rocket can be calculated by dividing the change in momentum of the rocket by the time it takes to complete the flight.
The average force on a rocket can be affected by the mass of the rocket, the amount of thrust produced by the rocket's engines, and the external forces acting on the rocket such as air resistance.
Calculating the average force on a rocket is important because it helps us understand the performance and capabilities of the rocket. It also allows us to make necessary adjustments to improve the rocket's design and efficiency.
The average force on a rocket plays a crucial role in determining the rocket's trajectory. A higher average force will result in a faster acceleration and a steeper trajectory, while a lower average force will result in a slower acceleration and a more gradual trajectory.