Answer:
a= 4.9 [tex]\frac{m}{s^{2} }[/tex]
Explanation:
Force equation
[tex]F= m*a[/tex]
[tex]F= W*g*sen (30)\\F= 80 kg * 9.8 \frac{m}{s^{2} } * sen (30)\\F= 80 kg * 9.8 \frac{m}{s^{2} } * 0.5\\F= 392 *\frac{kg*m}{s^{2} } = 392[/tex] N
[tex]a= \frac{F}{m} = \frac{392 N}{80 kg} = \frac{392 \frac{kg*m}{s^{2} } }{80 kg}\\ a= 4.9 \frac{m}{s^{2} }[/tex]
