Question

I NEED HELP ASAP.........!!!!!!!

Answer 1

Below

Step-by-step explanation:

Trial 1 : v = d/t

v = 10 / 20

v = 0.5 m/s

Trial 2 :

v = 10 / 25

v = 0.4 m/s

Trial 3 :

v = 10 / 30

v = 0.33333....

2. Find average speed

0.5 + 0.4 + 0.333 = 1.2333

Divide by 3 : 0.41 m/s

Use t = d/v

t = 200 m / 0.41111 m/s

t = 486.486486486 s

Then just round to however your teacher wants

Hope this helps!