CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Two particles 'A' and 'B', move with constant velocities v1 and v2 respectively. At the initial moment, their position vectors are r1 and r2 respectively. The condition for particle 'A' and 'B' for their collision is

A
r1 r2 = v1 v2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
r1 r2(r1 r2 = v1 v2(v1 v2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
r1.v1=r2.v2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
r1×v1=r2×v2
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B r1 r2(r1 r2 = v1 v2(v1 v2
For two particles to collide, the direction of the relative velocity of one with respect to other should be directed towards the relative position of one particle wrt other.
i.e. r1 r2(r1 r2 direction of relative position of 1 w.r.t. 2
& v1 v2(v1 v2 direction of velocity of 2 w.r.t. 1

So for collision of 'A' & 'B',
r1 r2(r1 r2 = v1 v2(v1 v2

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Relative Motion in 2D
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon