A rocket can move in air free space, but...

A rocket can move in air free space, but a jet plane cannot. Why?

Text Solution

Verified by Experts

A rocket is self contained , as both the fuel and the oxygen needed to burn the fuel are available inside the rocket . Therefore , a rocket can move in air free space . A jet plane has fuel only It needs to take oxygen from the atmosphere to burn the fuel . That is way a jet plance cannot operate in air free space .

Topper's Solved these Questions

LAWS OF MOTION
PRADEEP|Exercise Very short answer questions|73 Videos
LAWS OF MOTION
PRADEEP|Exercise Long Answer Questions|16 Videos
LAWS OF MOTION
PRADEEP|Exercise solved examples|104 Videos
KINEMATICS
PRADEEP|Exercise 1 NCERT Comprehension|4 Videos
MATHEMATICAL TOOLS
PRADEEP|Exercise Fill in the blanks|5 Videos

Similar Questions

Explore conceptually related problems

Can a rocket operate in free space ?

A rocket is moving in a gravity free space with a constant acceleration of 2ms^(-1) along +x direction (see Fig.5.126). The length of a chamber inside the rocket is 4m. A ball is thrown from the left end of the chamber in +x direction with a speed of 0.3 ms^(-1) relative to the rocket. At the same time , another ball is thrown in -x direction with a speed of 0.2ms^(-1) from its right and relative to the rocket. the time in seconds when the two balls hit each other is:

A 3000 kg space probe is moving in a gravity free space at a constant velocity of 300 m//s . To change the direction of space probe, rockets have been fired in a direction perpendicular to the direction of initial motion of the space probe, the rocket firing exerts a thrust of 4000 N for 225 s . The space probe will turn by an angle of (neglect the mass of the rockets fired)

a charged particle moves in a gravity free space without change in velocity. Which of the following is/are possible?

A rocket moving in free space has varying mass due to fuel exhausted d m(t)/dt = -bv^2(t) where m(t) = instantaneous mass, b = constant, v(t) = instantaneous velocity . If gases are ejected with velocity u, with respect to rocket, instantaneous acceleration of should be

A charged particle moves in a gravity-free space without change in velocity. Possible cases are

Light waves can be polarised but sound waves cannot be. Why?

A particle moves in a gravity free space where an electric field of strength E and a magnetic field of induction B exit. Which of the following statement is are correct?

A jet plane flies in the air because

PRADEEP-LAWS OF MOTION-conceptual problmes

Three identical blocks, each having a mass M, are pushed by a force F ...
Text Solution
|
A bullet fired from a gun is more dangerous than an air molecule hitti...
Text Solution
|
A rocket can move in air free space, but a jet plane cannot. Why?
Text Solution
|
Why is it difficult to move a bike with its brakes on ?
Text Solution
|
Send is spread on tracks covered with snow. Why ?
Text Solution
|
When a weel is rolling on a level , what is the directionv of fricctio...
Text Solution
|
Is large brake on a bicycle wheel more effective than a small one ? Ex...
Text Solution
|
How do we save petrol when the types of the motor cycle are fully infl...
Text Solution
|
A block of mass 1 kg lies on a horizontal surface in a truck. The coef...
Text Solution
|
A block is gently placed at the top of an inclined plane 6.4 m long . ...
Text Solution
|
How does a lubricant help in reducing friction ?
Text Solution
|
When a person walks on a rough surface, the frictional force exerted b...
Text Solution
|
Can coefficient of friction exceed unity ?
Text Solution
|
Why are ball bearings used in machinery ?
Text Solution
|
Write a note on banking of roads.
Text Solution
|
A horse pulling a cart has to apply a greater force to start the cart ...
Text Solution
|
How does banking of roads reduce wear and tear of the tyres ?
Text Solution
|
Why has a horse to pull a cart harder during the first few steps of hi...
Text Solution
|
Why does a cyclist lean to one side while going along a curve ? In wha...
Text Solution
|
A stone tied at the end of sring is whirled in a circle. If the string...
Text Solution
|