Question

There are two statements Statement A --Newton’s first law in valid from the pilot in an aircraft which is taking off. Statement B-- Newton’s first law in valid from the observer in a train moving with constant velocity Which of the following is correct

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(a) A only

(b) B only

(c) Both A and B are correct


(d) Both A and B are wrong​

Answer 1

Answer:

B only

Explanation:

beacuse, when the train moves same inthis time the train breaked the 1st low of netwon.

Answer 2

Option (b) The statement B alone is correct. Newton’s first law is valid from the observer in a train moving with constant velocity

Explanation:

• Newton's first law of motion is stated as "An object at rest stays at rest and an object in motion stays in motion with the same speed and direction unless acted upon by an unbalanced force".
• While taking off and landing, the plane is under acceleration, thus the pilot is in a non-inertial frame of reference.
• In statement B, an object is observed to have zero acceleration when no external forces are applied to it.
• If a reference frame changes with constant velocity associated with an inertial reference frame, then it also has an inertial reference frame.
• We know that Newton’s law is invalid for cases of Non-inertial frame of reference.
• Therefore, Newton’s first law is valid from the observer in a train moving with constant velocity.