Answer:
f=ma.......m=f/a......m=20kg
The dog’s speed is
A) 0.61 m/s
Are there choices that come with this question?
Answer:
Energy transformation is when energy changes from one form to another – like in a hydroelectric dam that transforms the kinetic energy of water into electrical energy. While energy can be transferred or transformed, the total amount of energy does not change – this is called energy conservation.
Explanation:
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~DuffyDuck~
Vf=V1+at
0=31+a(7)
-31/7=a
a=-4.43m/s^2
Hope this helps.