Oscillations

The displacement of an oscillating particle is given by x = a sin ( ω t ) + b cos ( ω t ), where a and b are constant show that the motion of particle is S. H. M.

Solution:

12- 6 Surface Tension -1

Calculate the force required to take awaya flat circular plate of radius 0.01m from the surface of water. The surface tension of water is 0.075  N / m.

Solution:

11.5 Friction - 1

A 20 kg metal block is placed on horizontal surface. A block is just begin to slide when the horizontal force of 100 N is applied to it. Calculate the coefficient of static friction. If the coefficient of kinetic friction is 0.4, find the minimum force to maintain its uniform motion.

 

Solution:

12 - 06 Surface Tension - 01

Calculate the force required to take away a flat circular plate of radius 0.01 m from the surface of water. The surface tension of water is 0.075 N / m

11.1 Measurements-01

Find the dimensions of

a.      Power

b.     Force

c.      Permittivity of free space

12.5. Elasticity - 1

A wire of length 2 m and area of cross section 10^-4 m² is stretched by a load 102 kg. The wire will stretched by 0.1 cm

Calculate

a.     Longitudinal stress

b.     Longitudinal strain

c.      Young’s modulus of wire

11.2. Scalars and Vectors – ( 1 )

Two forces f₁ and f₂ of magnitude 5N each inclined each other at 60^o, act on a body. Find the resultant force acting on body.