Laws of Motion

1980 Q251 JEE Advanced MCQ
10 Mar 2026
A ship of mass 3 $ \times $ 107 kg initially at rest, is pulled by a force of 5 $ \times $ 104 N through a distance of 3 m. Assuming that the resistance due to water is negligible, the speed of the ship is
A.
1.5 m/s
B.
60 m/s
C.
0.1 m/s
D.
5 m/s
1980 Q252 JEE Advanced MCQ
10 Mar 2026
A rocket moves forward by pushing the surrounding air backwards.
A.
TRUE
B.
FALSE
1978 Q253 JEE Advanced Numerical
10 Mar 2026
A horizontal uniform rope of length L, resting on a frictionless horizontal surface, is pulled at one end by force F. What is the tension in the rope at a distance $l$ from the end where the force is applied?