Question

Displacement = 8 km
Time = 72s
find the velocity​

Answer 1

Velocity = Displacement / Time

• = 8 km = 8000 m
• = 8000 m / 72 s
• = 111.1111 ...
• = 111.1 m / s

Answer 2

Answer:-

Velocity is 400km/h

Explanation:-

Given that : Displacement = 8km

                   Time = 72s

Need to find: Velocity

To Find the velocity we must know that ::

• Velocity = Total Displacement/Total Time taken

~Firstly we have to convert the given time into hours.

⇒ 1s = 1/3600 h

⇒ 72s = 72/3600

⇒ 72s = 0.02h

T H E R E F O R E,

Velocity = 8km/0.02h

Velocity = 8 × 100/2

Velocity = 800/2

Velocity = 400km/h

~If velocity is needed in meters per second then we have to convert the displacement into meter.

⇒ 1km = 1000m

⇒ 8km = 8 × 1000m

⇒ 8km = 8000m

T H E R E F O R E,

Velocity = 8000m/72s

Velocity = 1000m/9

Velocity = 111.11 m/s

• Henceforth, the velocity is 400km/h or 111.11 m/s.