Answer:
a) The velocity is 2.94m/s
b) 0.441
Explanation:
a) Assume gravity is 9.8m/s^2
Use the equation below to solve for the velocity at 0.30 seconds
[tex]vf=vi+at[/tex],
vf =unknown velocity vi= initial velocity vi=0m/s a= 9.8m/s^2 t=0.30seconds
Step 1: Substitute the variables with the knowns
[tex]vf=0m/s+(9.8m/s^2)*0.30seconds[/tex]
Step 2: Solve
[tex]vf=2.94m/s[/tex]
b)
Use the equation below to solve for the displacement at 0.30 seconds
[tex]x=vit+\frac{1}{2} at^{2}[/tex]
Step 1: Substitute the same variables with the knowns
[tex]x=\frac{1}{2}*(9.8m/s^2)*(0.30seconds)^{2}[/tex]
Note that vi*t=0 as vi=0m/s
Step 2: Solve
x=0.441m
