Answer:
-56 m/s
Explanation:
The projectile motion of velocity can be modelled as:
[tex] \displaystyle{v = u + gt}[/tex]
u is initial velocity which is given in the problem (4 m/s), t is time which is also already given in the problem (6 seconds) and g is a constant of acceleration due to gravity (9.8 m/s²)
However, since the egg is thrown upward which is against the gravity direction, the sign of direction must be negative. Hence, g = - 9.8 m/s²
[tex] \displaystyle{v = 4 - 9.8 \times 6} \\ \\ \displaystyle{v = 4 - 60} \\ \\ \displaystyle{v = - 56 \: \text{m/s}}[/tex]
