Home
Class 12
PHYSICS
A metal plate 10 cm square rests on a 2 ...

A metal plate 10 cm square rests on a 2 mm thick caster oil layer. Coefficient of viscosity of caster oil is 15 poise. The horizontal force needed to move the plate with speed 3 cm s^-1 is

A

25000 dyne

B

zero

C

225 dyne

D

22500 dyne

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

In Millikan's oil drop experiment. What is the terminal speed of an uncharged drop of radius 2.0 times 10^-5 m and density 1.2 times 10^3 kg m^-3 . Take the viscosity of air at the temperature of the experiment to be 1.8 times 10^-5 Pa s . How much is the viscosity force on the drop at that speed? Neglect buoyancy of the drop due to air.

A metal block of area 0.10 m^2 is connected to a 0.010 kg mass via a string that passes over an ideal pulley(considered massless and frictionless). A liquid with a film thickness of 0.30 mm is placed between the block and the table . When released the block moves to the right with a constant speed of 0.085 ms^-1 . FInd the coefficienyt of viscosity of the liquid.

A body of mass 2 kg initially at rest moves under the action of an applied horizontal force of 7N on a table with coefficient of kinetic friction = 0.1 . Compute the Work done by the net force on the body in 10s.

A body of mass 2 kg initially at rest moves under the action of an applied horizontal force of 7N on a table with coefficient of kinetic friction = 0.1 . Compute the Work done by the applied force in 10s.