Mechanical and Chemical. (Weathering and erosion)
v^2-u^2=2 x a x d
25^2-0^2=2 x a x 70
625-0=140 x a
625=140a
a=625/140
a=4.46 m/s^2
im not very sure but i think this is how you do this
Answer:
a sequence
Explanation: was that an option?, or was it not a multiple choice question ?