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 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 body is projected up along a rough inclined plane of inclination 45 ^@ . The coefficient of friction is 0.5. Then the retardation of the block is

. A particle is projected up along a rough inclined plane of inclination 45^(@) with the horizontal. If the coefficient of friction is 0.5, the acceleration 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

A particle is projected vertically upwards with a velocity v. It returns to the ground in time T. Which of the following graphs correctly represents the motion.

A particle is projected vertically upwards with a velocity v. It returns to the ground in time T. Which of the following graphs correctly represents the motion.

The fig. shows the v-t graph of a particle moving in straight line. Find the time when particle returns to the starting point.