Question

A train moving at 45kmph is hit by a stone thrown at right angles to it with velocity of 22.5kmph.Calculate the velocity and direction with which stone appears to hit a person travelling in a train.

Answer 1

Volume = Distance \Speed
45\22.5
2

Answer 2

Concept

Speed is a measure of how fast an object moves at a given time. Scalar total. Its unit is m / s.

With a body that covers the same distances over and over again, the speed is called the same speed .

Given

The Velocity V1 of the train given is 45kmph

The Velocity V2 given is 22.5kmph

Find

We need to find the Velocity with the direction.

Solution

We know that that the Velocities are given.

V1 = 45kmph

V2 = 22.5

We will find the magnitude of the velocities

Therefore , Vt/s = 45i-22.5j

= 22.5(2i-j)

Hence the velocity is 40.27m/s and the directions is i

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