Question

Ayuda porfi, es de vida o muerte ​

Answer 1

Respuesta:

65 m/s

Explicación:

$a^{2} = \sqrt{b^{2} +c^{2} -2*b*c*cos\alpha$

$a^{2} =\sqrt{(25m/s)^{2}+(45m/s)^{2} -2*25m/s*45m/s*cos(135) }$

$a^{2}=\sqrt{625m^{2}/s^{2}+2025m^{2}/s^{2}-(-1591m^{2}/s^{2}) }$$a^{2} = \sqrt{625m^{2}/s^{2}+2025m^{2}/s^{2} +1591m^{2}/s^{2} }$$a^{2}=\sqrt{4241m^{2}/s^{2} }$

$a=65,12m/s$