Answer:
Push with force of 1N
Explanation:
I have explained in the paper.
Goodluck
Acceleration
Explanation:
Acceleration is a physical quantity that expresses the change in the velocity of a body per unit of time.
Acceleration = 
V is the initial velocity
U is the final velocity
T is the time
It is has a unit of m/s²
Learn more:
Acceleration brainly.com/question/3820012
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They live half their lives in water and most of their life on land