Q8 of 124 Page 74

Which physical principle is involved in the working of a jet airplane?

Simply by Newton's third law I.e. conservation of momentum. The jet engine exerts force rearwards by throwing high velocity jet of air and as a reaction the plane moves forward.


More from this chapter

All 124 →
6

If the mass of a body and the force acting on it are both doubled, what happens to the acceleration?

 7

Name the physical quantity whose unit is ‘Newton’.

 9

Name the principle on which a rocket works.

 10

Is the following statement true or false :

A rocket can propel itself in a vacuum.