Question

a vehicle travels at a distance of 4h at a uniform speed. express it's speed in km/h and m/s​

Answer 1

Question ⤵️

A vehicle travels at a distance of 4h at a uniform speed. express it's speed in km/h and m/ss.

Answer⤵️

Speed of car in first 15 minutes = 40 km/h

Distance covered = speed × Time taken

60 minutes = 1 hour

$15 \: minutes = \frac{15}{60} \: hour$

$Distance covered = 240× \frac{15}{60} = 10km$

Speed of car in next 15 minutes = 60 km/h

$Distance covered = 60× \frac{15}{60} = 15km$

∴ Total distance covered = (10+15)km = 25 km

∴ 25 km is correct

Hope it helps you ✌️

Explanation:

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