The viscous drag is

The viscous drag on a liquid layer does not depend on

The viscous drag on a spherical body moving with a speed v is proportional to

An oil drop of mass m fall through a viscous medium. The viscous drag force. F is proportional to the velocity of the drop . At the instant it begins to fall the force that acts on the oil drop is (neglect buoyancy)

Two metal ball of radius R and 2 R falling through a fluid have same velocity at some point. The viscous drag acting on them at that instant are in the ratio

Two metal ball of radius R and 2 R falling through a fluid have same velocity at some point. The viscous drag acting on them at that instant are in the ratio

Assertion : When two boats sails parallel in the same direction and close to each other, they are pulled towards each other. Reason : The viscous drag on a spherical body moving with speed v is proportional to v .

Two metal ball of radius R and 2 R falling through a fluid have same velocity at some point. The viscous drag acting on them at that instant are in the ratio

A car having cross sectional area of its front equal to A is travelling on a highway at a speed v. The viscous drag force acting on the car is known to be given as F_(v)=CArhov^(2) .Where rho is density of air and C is a constant which depends on the shape of the car. The petrol used by the car produces E joules of energy per kg of it burnt. Calculate the mileage (in km/kg) of the car if the combined efficiency of its engine and transmission is f.