Question

A car travels with speed 30km/hr for 30 minutes and then with speed 40km/hr for one hour find (a) the total distance travelled by the car (b) the total time of travel (c) the average speed of car

Answer 1

Answer:

Explanation:

(a) Speed=distance/time..........(1) first impotant formula

So,

Let's change km/hr in m/sec

30×5/18=150/18........(2)

40×5/18=200/18........(3)

So,

Speed=distance/time

150/18=X/30×60

X= 250m

200/18=Y/60×60

Solve it and add both distance your answer is with you