Question

A car covers a distance of 255m in 6 seconds. Calculate the velocity of the car in m/s.​

Answer 1

Explanation:

Distance covered by car 180 km in 5 hours

(i) Distance covered in 1 hour = \frac{180}{5}=36km

5

180

=36km

Distance covered in 3 hours = 3 x 36 = 108 km

(ii) To cover a distance of 180 km , time taken = 5 hours

To cover a distance of 1 km , time taken = \frac{5}{180}

180

5

To cover a distance of 54 km, time taken = \frac{5}{180}\times54=1.5hours

180

5 ×54=1.5hours

Answer 2

Explanation:

displacement=90km in east direction

velocity=timedisplacement=1.590=60km/h along east

60km/h=60×185=16.67m/s