Answer:
A person who has a fixed mindset thinks that some people are born smart, and others aren't smart - such as himself. Since he can't "do math," for example, then he says to himself, "I can't do it and never will be able to; it is what it is."
A person with a growth mindset believes that we're all born at the same level of abilities. Those that appear smart in a given area such as math are smart simply because they practiced and worked hard. The person says to himself, "Anyone can master something with enough time and effort. Even I can do it."
Explanation:
Assuming you’re solving for the total mechanical energy, you use the following equation:
total mechanical energy=KE+PE
KE = (1/2)mv^2
=(1/2)x8x20^2=1600 J
PE= mgh
g≈10 m/s^2
=8x10x85=6800 J
total mechanical energy =1600+6800=8400 J
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