Question

Two cars are travelling with respective

velocities

v m s 1

1 10 along east and

v m s 2

1 10 along west. What are the

speeds of the cars?​

Answer 1

Answer:

Distance between the two cars is 150 m.

For Car−1:

v=u

1

−at

0=10–2t

t = 5 sec

so distance travelled will be

s

1

=u

1

t−

2

1

at

2

s

1

=10×5−

2

1

×2×5

2

s

1

=25m

For Car−2:

v=u

2

−at

0=12–2t

t=6sec

so distance travelled will be

s

2

=u

2

t−

2

1

at

2

s

2

=12×6−

2

1

×2×6

2

s

2

=36m

So, when both cars will stop then the distance between them, will be :

150m–(25+36)m

=89m