In each of the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below. Choose the correct answer as
(a) If both assertion and reason are true and reason is the correct explanation of assertion.
(b) If both assertion and reason are true and reason is not the correct explanation of assertion.
(c) If assertion is true but reason is false
(d) If assertion is false but reason is true.
1)
Assertion: Action and reaction forces act on 2 different objects
Reason: Action and reaction have zero resultant
2)
Assertion: When a unbalanced force acts on a body, it can change its momentum. Reason: An unbalanced force produces acceleration.
Answers
1)
correct option is A
hope u like my ans but I don't know 2 one so sorry and be happy
Answer:
1. (B) Assertion and reason both are true but reason is not the correct explanation.
2. (A) Assertion and reason both are true and reason is the correct explanation.
Explanation:
1.
Assertion:- Action and reaction force act on 2 different objects kept in contact.
Reason:- The resultant of action and reaction force is zero because these forces are of same magnitude and act in opposite directions.
2.
Assertion :- unbalanced force causes change in momentum. As then there will be an acceleration.
As => F = ma
And => a = (v - u)/ t
If there is acceleration then there is a change in velocity and change in velocity means change in momentum.
=> P = mv
Where p is the momentum.
Reason:- An unbalanced force produces acceleration