A particle is projected from a point O with velocity u at an angle of 60o with the horizontal. When it is moving in a direction at right angles to its direction at O, its velocity then is given by
u/3
u/2
2u/3
2u/3
If f : R S, defined by , is onto, then the interval of S is
[0, 3]
[-1, 1]
[0, 1]
[0, 1]
If , then the value of x is
5
4
12
11
A.
5
Given,
Eq. (i) becomes,