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Q.
Column I Column II
A Rocket’s work 1 Friction
B $F= ma$ 2 Uniform motion
C Contact force 3 Conservation of momentum
D Constant force 4 Newton’s second law

Laws of Motion

Solution:

$(A) \rightarrow (3); (B) \rightarrow (4); C \rightarrow (1); (D) \rightarrow (2)$