Home
Class 11
PHYSICS
Two trains A and B of length 400 m each ...

Two trains A and B of length 400 m each are moving on two parallel tracks with a uniform speed of `72 km h^(-1)` in the same direction, with A ahead of B. The driver of B decides to overtake A and accelerates by `1 m s^(-2)`. If after 50 s, the guard of B just brushes past the driver of A, what was the original distance between them ?

Text Solution

Verified by Experts

1250 m
Promotional Banner

Similar Questions

Explore conceptually related problems

Two billiard balls each of mass 0.05 kg moving in opposite directions with speed 6 m s^(-1) collide and rebound with the same speed. What is the impulse imparted to each ball due to the other ?

A and B are two points 150 km apart on a highway. Two cars start from A and B at the same time. If they move in the same direction they meet in 15 hours. But if they move in the opposite direction, they meet in 1 hour. Find their speeds.

Two parallel rail tracks run north-south. Train A moves north with a speed of 54 km h^(-1) , and train B moves south with a speed of 90 km h^(-1) . What is the (a) velocity of B with respect to A ?, (b) velocity of ground with respect to B ?, and (c) velocity of a monkey running on the roof of the train A against its motion (with a velocity of 18 km h^(-1) with respect to the train A) as observed by a man standing on the ground ?

A bus starting from rest moves with a uniform acceleration of 0.1 m//s^(2 for 2 minutes. Find (a) The speed acqquired (b) The distance travelled

a. Two insulated charged copper spheres A and B have their centres separated by a distance o 0.5 m. What is the mutual force of electrostatic repulsion if the charge on each is 6.5xx10^(-7)C ? Assume that the radii of A and B are negligible compared to the distance fof separation. b. What is the fore of repulsion if each sphere is charged double the above amount and the distance between them is halved?

Two identical conducting balls A and B have positive charges q_(1) and q_(2) respectively. But q_(1)!=q_(2) . The balles are brought together so that they touch each other and then kept in their original positions. The force between them is