EASY
Earn 100

Explain why pull is easier than push.

Important Questions on Laws of Motion

MEDIUM
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
A balloon with mass m is descending down with an acceleration a (where a<g). How much mass should be removed from it so that it starts moving up with an acceleration a?
HARD
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
A rope of length L and uniform linear density is hanging from the ceiling. A transverse wave pulse, generated close to the free end of the rope, travels upwards through the rope. Select the correct option.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
A body of weight W1 is suspended from the ceiling of a room through a chain of weight W2. The ceiling pulls the chain by a force
MEDIUM
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Two blocks A and B of masses 3m and m respectively are connected by a massless and inextensible string. The whole system is suspended by a massless spring as shown in figure. The magnitudes of acceleration of A and B immediately after the string is cut, are respectively
Question Image
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Explain why the frictional force is said to be a contact force.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Identify the force that comes into play in the following case:
Riding a cycle on a straight road and then negotiating a turn.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
An archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms.
muscular, contact, non-contact, gravity, friction, shape, attraction 

The type of force responsible for a change in the state of motion of the arrow is an example of a _____ force.

EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion

Write the quadrants in which the following points lie:

-4,7

MEDIUM
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
List any two advantages and two disadvantages of friction.
MEDIUM
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Assertion: A lighter and a heavier bodies moving with same moment and experiencing same retarding force have equal stopping times.

Reason: For a given force and momentum, stopping time is independent of mass.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Which contact force always opposes a motion? Give examples.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Which of the following is an example of contact force?
MEDIUM
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Why do you slip while walking on snow or on stepping on a banana peel?
MEDIUM
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Name the type of force acting on a moving object.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Friction is caused by the _________ on the two surfaces in contact.
MEDIUM
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
When we stop pedalling a bicycle, it comes to rest after some time. Describe the forces responsible for the change in the state of motion of the bicycle.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Rougher surfaces have
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
Define frictional force.
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion
What do you understand by friction?
EASY
Physics>Mechanics>Laws of Motion>Application of Newton's Law of Motion

Name the type of forces involved in a moving boat coming to rest when rowing is stopped.