Question

a car cover 90 km in 1 1/2 hours toward east. calculate (1)displacement of car (2)its velocity in (a) kmh-¹ (b) ms-¹.​

Answer 1

11 by 2 hours we can write it 5 hour 30 minutes or 5.30 hr

Total displacement is 90 km as mentioned

Velocity = d/t. In kilometre per hour

velocity =d/t×5/18 In metre per second

Answer 2

Answer:

Given,a car covers distance=90km.

1)therefore,Displacement=90km.

2)we know that , velocity=displacement/time.

velocity=90 km / 11/2 h

velocity=16.4 km/h (a)

Now,in m/s,

velocity=9000m/330s

velocity=27.2 m/s

Explanation:

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