Question

a car travelled the first 500 m distance with a speed of 10 m/s, the next 1000 m with a speed of 10 m/s and the last 550 m in 5 s. Calculate the average speed of the car​

Answer 1

Answer:

13 m/s is the average speed

Explanation:

First find the speed of last 500 m

S = D/T

So speed = 550/5 = 110m/s

Now find time taken for first 500 m = 50 sec.

then, next 1000m = 100 sec.

then last 500m = 110 m/sec.

= 500 + 1000 + 550/ 50 + 100 + 5

= 13 m/s approx.