IIT-JEE 1980 | Laws of Motion Question 32 | Physics

IIT-JEE 1980

MCQ (Single Correct Answer)

-0.75

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

1.5 m/s

60 m/s

0.1 m/s

5 m/s

IIT-JEE 1980

MCQ (Single Correct Answer)

-0.75

A block of mass 2 kg rests on a rough inclined plane making an angle of $$30^\circ $$ with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is

9.8 N

0.7$$ \times $$9.8$$ \times $$$$\sqrt 3 $$ N

9.8$$ \times $$$$\sqrt 3 $$ N

0.7$$ \times $$9.8

JEE Advanced Subjects