A particle is projected up a `37^(@)` rough incline with velocity `v_(0)`. If `mu = 1//2`, the speed with which it returns back to the starting point is `v`. Then `v//v_(0)` is

A particle is projected up a 45^(@) rough incline with a velocity v. The coeffciient of friciton is 0.5. The speed with which it returns back to the starting point is v'. Then v' // v is :

A particle is projected up a 45^(@) rough incline with a velocity v. The coeffciient of friciton is 0.5. The speed with which it returns back to the starting point is v'. Then v' // v is :

A particle is projected directly along a rough plane of inclination theta with velocity u. If after coming to the rest the particle returns to the starting point with velocity v, the coefficient of friction between the partice and the plane is

A particle is projected directly along a rough plane of inclination theta with velocity u. If after coming to the rest the particle returns to the starting point with velocity v, the coefficient of friction between the partice and the plane is

A particle of mass m is projected upword with velocity v=(v_(e))/(2) ( v_(e)) escape of the particle is

Two particles A and B projected simultaneously from a point situated on a horizontal place. The particle A is projected vertically up with a velcity v_(A) while the particle B is projected up at an angle 30^(@) with horizontal with velocity v_(B) . After 5s the particles were observed moving mutually perpendicular to each other. The velocity of projection of the particle v_(A) and v_(B) respectively are:

A paricle is projected up from the bottom of an inlined plane of inclination alpha with velocity v_0 If it returns to the points of projection after an elastic impact with the plane, find the total time of motion of the particle.

A block starts going up a rough inclined plane with velocity V_0 as shown in figure.After some time reaches to starting point again, with a velocity V_0/2 .Find coefficient of friction mu .Given g=10m/sec^2 .

A block starts going up a rough inclined plane with velocity V_0 as shown in figure.After some time reaches to starting point again, with a velocity V_0/2 .Find coefficient of friction mu .Given g=10m/sec^2 .