# Vehicle Moving with a Speed of 18 Km - Physics

A vehicle moving with a speed of 18 km h–1covers....m in 1 s

#### Solution 1

Using the conversion,

1 km/h = 5/18 m/s

18 km/h = 18xx5/18 = 5 m/s

Therefore, distance can be obtained using the relation:

Distance = Speed × Time = 5 × 1 = 5 m

Hence, the vehicle covers 5 m in 1 s

#### Solution 2

Speed of vehicle = 18 km/h = 18 x 1000/3600 m/s

= 5 m/s  so the vehicle covers 5 m in 1 s. = 11.3

Concept: Measurement of Length
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#### APPEARS IN

NCERT Class 11 Physics
Chapter 2 Units and Measurements
Q 1.3 | Page 35