The SI unit of time is second
Answer:
I'm pretty sure it'sssss A
Answer:
28,800m/p second
Explanation:
Calculate the distance per second so, 400m/50 s= 8m/p second now knowing the speed/hour and knowing an hour has 3,600 seconds,multiply it by 8 then you will get 28,800m/p second, or 28.8km/h
I think its 980.7
because 9.807 × 100