Question

Resolver el siguiente cuadro

Answer 1

Explicación:

a)

$vf - vo = a \times t$

$8 - 4 = 2a$

$a = \frac{4}{2} = 2$

b)

${vf}^{2} = {vo}^{2} + 2ax$

${12}^{2} = {8}^{2} + 2 \times 2x$

$144 = 64 + 4x$

$4x = 80$

$x = \frac{80}{4} = 20$

c)

$x = vo \times t + \frac{a \times {t}^{2} }{2}$

$x = 4 \times 3 + \frac{1 \times {3}^{2} }{2}$

$x = 12 + \frac{9}{2} = \frac{33}{2}$

d)

$v = \frac{x}{t}$

$t = \frac{x}{v} = \frac{4}{12} = \frac{1}{3}$

e)

$vf - vo = a \times t$

$vo = \frac{vf}{a \times t} = \frac{10}{3 \times 2} = \frac{10}{6} = \frac{5}{3}$

f)

${vf}^{2} = {vo}^{2} + 2ax$

${vf}^{2} = {4}^{2} + 2 \times 2 \times 5$

${vf}^{2} = 16 + 20$

$vf = \sqrt{36} = 6$

g)

$v = \frac{x}{t}$

$v = \frac{2}{2} = 1$

h)

${vf}^{2} = {vo}^{2} - 2ax$

$0 = 16 - 8a$

$a = \frac{16}{8} = 2$