Laws of Motion questions
1031 published questions with worked solutions.
- A person standing on a spring balance inside a stationary lift measures 60 kg. The weight of that person if the lift descends...
- A boy pushes a box of mass 2 kg with a force F =(20 i +10 j )N on a frictionless surface. If the box was initially at rest,...
- A block of mass 10 kg starts sliding on a surface with an initial velocity of 9.8 ms^ -1 . The coefficient of friction between...
- A boy ties a stone of mass 100 g to the end of a 2 m long string and whirls it around in a horizontal plane. The string can...
- A disc with a flat small bottom beaker placed on it at a distance R from its center is revolving about an axis passing through...
- For a particle in uniform circular motion, the acceleration a at any point P(R, ) on the circular path of radius R is (when is...
- A curved in a level road has a radius 75 m. The maximum speed of a car turning this curved road can be 30 m/s without skidding....
- A uniform chain of 6 m length is placed on a table such that a part of its length is hanging over the edge of the table. The...
- A force on an object of mass 100 g is (10 i + 5 j ) N. The position of that object at t = 2 s is (a i + b j ) m after starting...
- A monkey of mass 50 kg climbs on a rope which can withstand the tension (T) of 350 N. If monkey initially climbs down with an...
- A person is standing in an elevator. In which situation, he experiences weight loss?
- Statement : I If three forces F_1 , F_2 and F_3 are represented by three sides of a triangle and F_1 + F_2 =- F_3 , then these...
- A block of mass 5 kg is placed at rest on a table of rough surface. Now, if a force of 30 N is applied in the direction parallel...
- A child of mass 5 kg is going round a merry-go-round that makes 1 rotation in 3.14 S. The radius of the merry-go-round is 2 m....
- A block is moving on an inclined plane making an angle 45^ with the horizontal and the coefficient of friction is μ. The force...
- The potential energy of a particle of mass m at a distance r from a fixed point O is given by V(r)=kr^2/2, where k is a positive...
- Which one of the following is not a contact force ?
- When a force of 1 newton acts on a mass of 1 kg which is able to move freely, the object moves in the direction of force with a/an
- An object moves in a circular path with a constant speed. Which one of the following statements is correct ?
- Which one of the following has maximum inertia ?
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