Is it possible to have a collision in which the whole of K.E is lost.

Is it possible to have a polyhedron with any given number of faces?

Is it possible to have a regular polygon with measure of each exterior angle as 22^@ ?

Is it possible to have an elements with atomic number 1.5 placed between hydrogen and helium?

Is it possible to have negative value in speed and displacement?

Two identical ball bearings in contact with each other and resting on a frictionless table are hit head-on by another ball bearing of the same mass moving initially with a speed VL If the collision is elastic, which of the following figure is a possible result after collision?

Is it possible to have length and velocity both as fundamental quantities? Why?

Is it practically possible have (E - V) < 0

If one of the two colliding particles is initially at rest, is it possible for both of the particles to be a rest after collision?

Which of the following potential energy curves in Fig. 6.18 cannot possibly describe the elastic collision of two billiard balls? Here r is the distance between centres of the balls.

What are the possible angles of projection with the same velocity to have same range?