The wavelength `lambda` associated with a moving particle depends upon its mass m, its velocity v and Planck’s constant h Show dimensionally the relationship between them

Velocity of a particle depends upon t as V = A + Bt + Ct^2 . If velocity is in m/s, the unit of A will be :

A particle is moving with a velocity 5m/s towards east and its velocity changes to 5m/s north in 10 second. Its acceleration is

If a body is moving in a circle of radius r with a constant speed v m/s. Its angular velocity is

A partical of mass m1 is travelling with avelocity u1 strikes head-on against partical of mass m2 at rest.After collision the particales move with a velocity v1 and v2 respectively .show that the ratio of decrese in K.E of the partical of mass m1 to its original K.E is given By (4m1m2)/(m1+m2)^2

Certain force acting on a 20 kg mass changes its velocity from 5 m s^-1 to 2m s^-1 . Calculate the work done by the force.

What is the de Broglie wavelength associated with a ball of mass 150g travelling at 30m//s ? Given h=6.63xx10^(-34)Js .

A metal rod of length l is placed normal to a uniform magnetic field B. The rod moves with velocity v perpendicular to the field. Show that motional emf across its ends is Blv.

When a body of mass 'm' moves with a velocity 'v' its kinetic energy-