Question: Assertion [A]: A man standing on a completely frictionless surface can propel himself by whistling.
Reason [R]: If no external force acts on a system, its momentum cannot change.
Options:
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true but R is not a correct explanation of A
C) A is true but R is false
D) A is false but R is true
Show Answer
Answer:
Correct Answer: B
BETA
