Question

2 A train is moving east at a speed of 5m/s. A bullet fired
westward with a velocity of 10m/s crosses the train in
8sec. The length of train is -​

Answer 1

Answer:

120 Metres

Explanation:

Relative Speed = V1+V2

= 5m/s + 10m/s = 15 m/s

Time = 8sec

Speed = Distance

Time

Distance = Speed × Time

= 15m × 8 s

s

DISTANCE = 120 metres

HOPE IT HELPS YOU

Answer 2

Answer:

The correct answer of this question is 120m

Explanation:

Given - 2 A train is moving east at a speed of 5m/s. A bullet fired westward with a velocity of 10m/s crosses the train in 8sec.

To Find - Find the length of the train.

Velocity can be thought of as a vector quantity. It is the pace at which distance changes. It is the pace at which displacement changes. A moving object's speed can never be negative. A moving object's velocity can be zero.

Now,

Relative Speed is  = V1 + V2

=  5m/s + 10m/s = 15 m/s

= Time = 8sec

Speed = Distance/Time

Distance = Speed × Time

= 15m × 8 s

So, the distance is 120 m

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