KinematicsHard

Question

A particle a is projected with speed with speed vA from a point making an angle 60o with the horizontal. At the same instant, a second particle B is thrown vertically upward from a point directly below the maximum height point of parabolic path of A with velocity vB. If the two particles collide then the ratio of vA / vB should be : -

Options

A.1
B.
C.
D.√3

Solution


At maximum height vertical component of velocity becomes zero.
v2 = u2 + 2as
For A :         0 = vA2 sin2 60o - 2gh
                    2gh = vA2 sin2 60o  = vA2 (3/4)
                    VA =
For B :         0 = VB2 2gh
                    vB = ;

Create a free account to view solution

View Solution Free
Topic: Kinematics·Practice all Kinematics questions

More Kinematics Questions

Graph I and II give coordinates x(t) znd y(t) of a particle moving in the x - y plane. Acceleration of the particle is c...A disc is performing pure rolling on a smooth stationary surface with constant angular velocity as shown in figure....A particle is projected vertically upwards and it reaches the maximum height H in T seconds. The height of the particle ...Two pulley arrangements of inure given are identical.The mass of the rope is highlighter. In fig (a), the mass m is lift...A particle is moving with velocity , where K is a constant. The general equation for its path is...