Question

ayuda porfa daré corona ​

Answer 1

$\frac{18k}{h} \times \frac{1000}{1k} \times \frac{1h}{3600s} = \frac{18000}{3600} = 5 \frac{m}{s} \\ \\ a = \frac{vf - vo}{t} = \frac{0 - 5}{0.8} = \frac{ - 5}{0.8} = - 6.25 \frac{m}{s}$