Question

Two particles start moving from point A along a straight line AB at the same time in the same direction. One particle moves with a uniform velocity of 12 m·s-1 and the other with an acceleration of 2 m·s-2 and an initial velocity of 5 m.s-1. After how much time will the two particles meet?​

Answer 1

Answer:

A distance between the two particles is maximum when both have the same velocity

let the second move has a velocity v at time t

v=at

t=

a

v

distance cover by the first paticle s

1

is

= s

1

=vt=v×

a

v

=

a

v

2

distance cover the particle s

2

=

2

1

×at

2

=

2a

v

2

distance between both the particle is

s

1

−s

2

=

a

v

2

−

2a

v

2

=

2a

v

2