Question

дано h=10 m=2кг U=2мс E-? ​

Answer 1

Е=Ек+Еп

Ек:

$e (k)= \frac{mv^{2} }{2} = \frac{2 \times {2}^{2} }{2} = \frac{2 \times 4}{2} = \frac{8}{2} = 4$

Еп:

$e(p) = mgh = 2 \times 10 \times 10 = 2 \times 100 = 200$

Е=4+200=204