Question

A rocket car with a mass of 1500kg when empty is loaded with 90kg of fuel...

A rocket car with a mass of 1500kg when empty is loaded with 90kg of fuel which is consumed at a rate of 10 kg/s and is ejected from the back of the car with a relative velocity of 500 m/s. The drag force is if Fd = 6.8v where v is the velocity in m/s. What is the maximum velocity obtained by the car? After the car runs out of fuel, how much farther does it travel?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Solution in the uploaded images

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A rocket accelerates by burning its onboard fuel, so its mass decreases with time. Suppose the...
A rocket accelerates by burning its onboard fuel, so its mass decreases with time. Suppose the initial mass of the rocket at liftoff (including its fuel) is m, the fuel is consumed at rate r, and the exhaust gases are ejected with constant velocity ve (relative to the rocket). A model for the velocity of the rocket at time t is given by the equation v(t) = −gt − ve ln m − rt m where g is the acceleration...
A 200 kg weather rocket is loaded with 100 kg of fuel and fired straight up....
A 200 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 33 m/s2 for 31 s , then runs out of fuel. Ignore any air resistance effects. What is the rocket's maximum altitude? Express your answer to two significant figures and include the appropriate units. How long is the rocket in the air before hitting the ground? Express your answer to two significant figures and include the appropriate units.
A student is trying to optimize the exhaust shape of a rocket. They designed a new...
A student is trying to optimize the exhaust shape of a rocket. They designed a new shape, and are trying to figure out how fast it allows the burning fuel to flow out of the rocket. The student takes a rockets that weighs 10.43 kg empty and loads 8.79 kg of fuel. The student aims the rocket horizontally, lights it, and watches it take off. The rocket exhausts the fuel before dropping to the ground. Right before the fuel is...
A 2400-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass)...
A 2400-kg test rocket is launched vertically from the launch pad. Its fuel (of negligible mass) provides a thrust force so that its vertical velocity as a function of time is given by v(t)=At+Bt2, where A and B are constants and time is measured from the instant the fuel is ignited. At the instant of ignition, the rocket has an upward acceleration of 1.90 m/s2 and 1.20 s later an upward velocity of 1.50 m/s . Part A) Determine A....
1. Given the table below, about how much force does the rocket engine exert on the...
1. Given the table below, about how much force does the rocket engine exert on the 5.0 kg payload? Distance traveled with rocket engine firing (m) Payload final velocity (m/s) 500 250 490 250 1020 360 505 254 2.Look at the figure below. You compress a spring by x, and then release it. Next you compress the spring by 3x. How much more work did you do the second time than the first? 3. A crane is lifting construction materials...
For his engineering project, Fran¸cois built a model rocket of mass m = 0.55 kg simply...
For his engineering project, Fran¸cois built a model rocket of mass m = 0.55 kg simply by using materials he found lying around the lab and blueprints he found on the internet. The rocket’s propulsion is provided by a special battery-powered fan that is able to provide a constant force |Ffan| = 7.0 N – that is, once it is launched in a specific direction, the direction of the fan’s force does not change. The downside is that the rocket...
A jet accelerates at a=3.92 m/s^2 from rest until it reaches its takeoff velocity of 360...
A jet accelerates at a=3.92 m/s^2 from rest until it reaches its takeoff velocity of 360 km/hr. It has to travel for 5 seconds at its takeoff velocity before taking off. What's the minimum distance that the jet will travel on the runway? A car backs up at a constant speed for a short time, then applies the brakes and steadily comes to rest. Sketch velocity-time and position-time graphs that depict the car's motion. Assume that the forward direction is...
ch 6 1: It is generally a good idea to gain an understanding of the "size"...
ch 6 1: It is generally a good idea to gain an understanding of the "size" of units. Consider the objects and calculate the kinetic energy of each one. A ladybug weighing 37.3 mg flies by your head at 3.83 km/h . ×10 J A 7.15 kg bowling ball slides (not rolls) down an alley at 17.5 km/h . J A car weighing 1260 kg moves at a speed of 49.5 km/h. 5: The graph shows the ?-directed force ??...
21) A person carries a 25.0-N rock through the path shown in the figure, starting at...
21) A person carries a 25.0-N rock through the path shown in the figure, starting at point A and ending at point B. The total time from A to B is 1.50 min. How much work did gravity do on the rock between A and B? A) 625 J B) 20.0 J C) 275 J D) 75 J E) 0 J 22) A person carries a 2.00-N pebble through the path shown in the figure, starting at point A and...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT