Question

Q.14
Acar covers 2/3 distance with 60 km/h and 1/3 distance
with 20 km/h. Average speed is:
C') 66 kmh
D) 50 kmh
A) 36 kmh
B) 40 kmh
Solution plzz​

Answer 1

Answer:

(B) 40 km/ h

Explanation:

AVERAGE SPEED = u - v / t

[ where, u = final velocity and v = intifial speed or velocity.]

60 km/ h - 20 km/ h / t

40 km/ h /1

THEREFORE, average speed is equal to 40 km/h.