Find the magnitude and direction of the resultant of the velocities of `100 ms^(-1)` and `60 ms^(-1)` inclined to each other at angle of `60^(@)`.

Find the resultant of two velocities, on 30 ms^(-1) due east and other 40 ms^(-1) due north.

Determine the direction and magnitude of the resultant of the following velocities imposed on a particle 8ms^(-1) to south 12ms^(-1) to east and 3sqrt2 ms^(-1) to north east.

Two perfectly elastic spheres of masses 2 kg and 3 kg moving in opposite directions with velocities 8 ms^(-1) and 6 ms^(-1) respectively collide with each other. Find their velocities after the impact.

Find the velocity of image,when object and mirror both are moving towards each other with velocities 4ms^(-1) and 5ms^(-1) respectively, is

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.

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.