a good one..

A particle is projected at an angle of 60° with speed 10√3 from teh point A as shown in teh fig......at the same time the wedge is made to move with speed 10√3 towards rigth as shon in the fig.....then time after which particle will strike the wedge is???
g=10m/s2

not a doubt

5 Answers

1
Bicchuram Aveek ·

Again another relative velocity sum...good one.

1
Che ·

no one up for this one......

1
arpan sinha ·

i think the particle will strike the wedge when the vel. of particle is equal to the rel vel .of the particle..or we can say rel. vel. is zero..

1
Anirudh Kumar ·

Discussing motion of Ball from the frame of Wedge .

Vel. of ball perpendicular to wedge = 5√3

now gravitational force perpendicular to wedge = gCos 30 = g√3/2 = 5√3

let the ball strike the wedge after 't' sec

=> -5√3=5√3-5√3t (v=u+at)
=>t=2 sec

the particle strikes the wedge after 2 sec.

1
Che ·

yo...ans is 2 secs

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