Question

A car covers the first 150 km with a speed of 50 km/h and the next 150 km with a speed of 75 km/h. Its average speed for 300 km is ​

Answer 1

Answer:

o complete 1km distance with speed =50kmhr it tkes time t  

1

​

=  

50

1

​

s

To complete 1km distance with speed =40kmhr it tkes time t  

1

​

=  

40

1

​

s

Average speed=  

(1/50)+(1/40)

1+1

​

=44.44m/s

Explanation:

Answer 2

Answer:

62.5 km/h

Explanation:

When we haven't been given time or if we've been given two different blocks of distances covered, we can use the formula v + u/2.

So,

75 + 50 / 2 = 62.5 km/h

Therefore, its average speed is 62.5 km/h

I hope this helps!!

Regards,

Lilac584