Two trains, each 50 m long, are travelli...

Two trains, each `50 m` long, are travelling in opposite directions with velocities `10 ms^-1 and 15 ms^-1`. The time of their crossing each other is.

`2sqrt(3)s`

`4sqrt(3)s`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

MOTION IN A PALNE
ALLEN|Exercise EXERCISE-3|41 Videos
MOTION IN A PALNE
ALLEN|Exercise SOLVED EXAMPLE|28 Videos
MOTION IN A PALNE
ALLEN|Exercise EXERCISE-1|99 Videos
KINEMATICS-2D
ALLEN|Exercise Exercise (O-2)|48 Videos
NEWTON'S LAWS OF MOTION & FRICTION
ALLEN|Exercise EXERCISE (JA)|4 Videos

Similar Questions

Explore conceptually related problems

The length of Lucknow mail is 120 m and that of Punjab mail is 80 m. These two trains are running in the opposite direction with velocities of 40 km/h and 50 km/h respectively. The time taken by them to cross each other is :

Two trains 121 m and 99 m in length are running in opposite directions with velocities 40 km h^(-1) and 32 km h^(-1) . In what time they will completely cross each other?

Two trains 120 m and 80 m in length are running in opposite directions with velocities 42 km h^(-1) and 30 kmh^(-1) . In what time they will completely cross each other?

The length of Lucknow mail is 120 m and that of Punjab mail is 80 m These two trains are runing in the opposite direction with velocities of 40 km/h and 50 km/h respectively.The time taken by them to cross each other is:

Two trains 110 m and 90 m log respectively, are trunning in opposite directions with velocities 36 km h^(-1) and 54 km h^(-1) Find the time taken by the trains to completely cross each other.

Two trains 120m and 100 m in length are tunning in opposite directions with velocityes 42 km h^(-1) and 30 km h^(-1) In what tiem they will completely cross each other ?

The length of Lucknow mail is 120 m and that of Punjab mail is 80 m. These two trains are running in the same direction with velocities of 40 km/h and 50 km/h respectively. The time taken by them to cross each other is :

The length of Lucknow mail is 120 m and that of Punjab mail is 80 m These two trains are runing in the same direction with velocities of 40 km/h and 50 km/h respectively.The time taken by them to cross each other is:

Two trains having lengths 120 m and 100 m running in the opposite directions with velocities 40 km/h and 50 km/h. In what time they will completely cross each other?

ALLEN-MOTION IN A PALNE-EXERCISE-2

A train of 150 m length is going toward north direction at a speed of ...
Text Solution
|
A river is flowing from east to west at a speed of 5m//min. A man on s...
Text Solution
|
Two trains, each 50 m long, are travelling in opposite directions with...
Text Solution
|
A boat is moving with a velocity 3 hat i+ 4hat j with respect to groun...
Text Solution
|
Two cars are moving in the same direction with the same speed 30 km//h...
Text Solution
|
A stone is thrown upwards and it rises to a height 0f 200m. The relati...
Text Solution
|
A bus starts moving with acceleration 2 ms^-2. A cyclist 96 m behind t...
Text Solution
|
A body X is projected upwards with a velocity of 98 ms^(-1), after 4s,...
Text Solution
|
A bird is flying towards south with a velocity 40km/hr and a train is ...
Text Solution
|
A train moves in north direction with a speed of 54 km/hr. and a monke...
Text Solution
|
Two trains each of length 50m. are running with constant speeds on pa...
Text Solution
|
A bird is flying with a speed of 40 km/hr. in the north direction. A t...
Text Solution
|
A man is walking on a road with a velocity 3kmhr. Suddenly rain starts...
Text Solution
|
A boy is runing on the plane road with velocity v with a long hollow t...
Text Solution
|
A man standing on a road has to hold his umbrella at 30^(@) with the ...
Text Solution
|
A boat takes 2 hours to travel 8 km and back in still water lake.With ...
Text Solution
|
A river is flowing at the rate of 6 km/hr. A swimmer swims across with...
Text Solution
|
A man wishes to swim across a river 0.5km. wide if he can swim at the...
Text Solution
|
A boat man can row with a speed of 10 km/hr. in still water. The river...
Text Solution
|
A boat covers certain distance between two spots on a river taking 't(...
Text Solution
|