Question

There are two statements
A) Newton’s first law is valid from the pilot in an aircraft which is taking off
B) Newton’s first law is valid from the observer in a train moving with constant velocity
Which of the following is correct?
a) A only b) B only c) Both A and B d) Both A and B wrong

Answer 1

Newton's first law is valid from the observer in a train moving with constant velocity

Answer 2

b) B only

B) Newton’s first law is valid from the observer in a train moving with constant velocity

Explanation:

According to Newton's First Law of motion, an object remains in the same state of motion unless a resultant force acts on it. If the resultant force on an object is zero, this means: a moving object continues to move at the same velocity (at the same speed and in the same direction).Newton's first law of motion - sometimes referred to as the law of inertia. Newton's first law of motion is often stated as. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.