Question

5.A car travels 30 km in 1 hour and another 30 km in 40 mins. What is the average speed of the car in km/h?

0.42

36

0.36

30​

Answer 1

By using the formula v1t1+v2t2/(v1+v2) we get the answer op b and convert the units

Answer 2

Solid is ----- whereas liquid is ------ in nature.

Answer:

Explanation: