A particle P is projected from a point O with velocity

[VICKZZA]

Homework Statement

A particle P is projected from a point O with velocity 12i +16j .two seconds later,another particle Q is projected from O and collides with P after another second.Find the initial velocity of Q.

Homework Equations

x=(vcosθ)(t)
y=vtsinθ-1/2gt^2

The Attempt at a Solution

i think that Q will approach P when ts vertical and horizontal distance become equal with P.but i can't handle the time change or its accurates valuess...pleasezz help me out.....

 

[gneill]

How many seconds does the first particle spend in flight before the collision? What is the x,y location of the collision?

 

[VICKZZA]

its not given in the question

 

[gneill]

its not given in the question

Sure it is. Reread the question statement carefully.

 

[VICKZZA]

its not there

 

[OJFord]

its not there

Yes, it is.


P is projected. 2 seconds later, Q is projected. Another second later, they collide.


Collision happens, 2 + 1 = 3 seconds after P is projected. From there, you should be able to easily work out the location of collision (where is P 3 seconds after projection?).