Question

Nita heard the sound of lightning after 4 second of seeing it . what was the distance of the lightning from her ( the velocity of sound in air is 340 m/s )

Answer 1

Answer:

1360 m

Explanation:

Suppose Nita is stood in open ground and she heard the lightning sound after 4 seconds of seeing it.

Given that,

Velocity of sound in air = 340 m/s

Time required = 4 seconds

To find: Distance between Nita and that Lightning

So,

Velocity = Distance / Time

340 m/s = Distance / 4 seconds

Distance = 340 * 4

Distance = 1360 meters

Therefore, the distance of Lightning from Nita is 1360 meters.

Answer 2

Given,

The velocity of sound in air = 340 m/s

Total time taken by the lightening sound wave to reach Nita = 4 seconds

To find,

The distance of the lightning from Nita.

Solution,

We can simply solve this numerical problem by using the following process:

Mathematically,

The velocity of a sound wave (v)

= distance traveled by a sound wave (d) / time taken by the sound wave to reach the ear (t)

=> distance traveled by the sound wave (d) = Velocity of a sound wave (v) x time taken by the sound wave to reach the ear (t)

Now,

The distance of the lightening from Nita

= Distance traveled by the sound wave to reach Nita (d)

= Velocity of a sound wave (v) x time taken by the sound wave to reach Nita (t)

= 340 m/s x 4 seconds

= 1,360 meters

Hence, the distance of the lightning from Nita is equal to 1,360 meters.