Forces and Laws...

Statement A: Rocket contains fuel as well as oxygen to burn its fuel in its body.
Statement B: A jet plane takes oxygen from atmosphere to burn its fuel

“Inflated balloon lying on the surface of a floor moves forward when pierced with a pin.
The above mentioned phenomena is due to

The change in the momentum of a body in 0.01 second is 10 kg ms-1. The force acting on this body is

Statement A: Rocket can propel its self in vacuum.
Statement B: Newton’s laws are universal.
Which of the two statements is true?

A ball is dropped from a height of 10m. Ball is embedded in sand of 1m and stops.

Two bodies of masses 1kg and 5kg are dropped gently from the top of a tower. At a point 50cm from the ground both the bodies will have the same

Statement A: Calculus, a new branch of mathematics was stated by Newton.
Statement B: If mass remains same, doubling the force will reduce the acceleration to half.
Which of the above two statements is true

If an object experiences a net zero unbalanced force, than the body

Statement A: A passenger falls forward when a bus suddenly starts moving in the forward direction
Statement B: A gun recoils backward with small speed than the bullet moving forward.