Question

an athalate complete 100m race in 9.8second what is his speed km/h assume the athalate to be runing with uniform speed

Answer 1

Answer:

that is your answer ok by

Answer 2

Answer:

98 sec

Explanation:

1 km = 1000m

100m=0.1 km

so 100×10 = 1 km

Therefore

100m in 9.8 sec

1000m in 9.8×10

= 98 sec