Analogy.
kicking a ball : contact force :: falling of leaf :_____?

What is non-contact force?

Non- contact force is also known as __________ force .

Three masses in contact is as shown above. If force F is applied to mass m_1 , then the contact force acting on mass m_2 is

An iron ball and a feather are both falling from a height of 10 m. (a) What are the time taken by the iron ball and feather to reach the ground? (b) What are the velocities of iron ball and feather when they reach the ground? (Ignore air resistance and take g=10ms^(-2)

A aeroplane is flying at a constanct horizontal velocity of 600 km/hr at an elevation of 6km towards a point directly above the target on the earth's surface. At a approprate time, the pilot releases a ball so that it strikes the taraget at the earth. The ball will appear to be falling :

Three blocks A, B and C of mass 4 kg , 2kg and 1kg respectively , are in contact on frictionless surface as shown .If a force appliedon 14N is applied on the 4 kg block then the contact force between A and B is :

An apple falls from a tree. An insect in the apple finds that the earth is falling towards it with an acceleration 'g'. Who exerts the force needed to accelerate the earth with this acceleration? (AS_(7))

Find the terminal velocity of a steel ball 2 mm in diameter falling through glycerine. Relative density of steel is 8, relative density of glycerine is 1.3 and viscosity of glycerine is 8.3 poise.