Answer:
Hello this is allina from brainly. I'll be helping you today. Use the formula, v=gt to find the velocity.
For example, the velocity after one second would be g * t = 10 m/s^2 * 1, which would be 10 m/s.
So, just put the time into the equation:
ii. 20 m/s
iii. 30 m/s
iv. 50 m/s
The formula d = 1/2gt^2 is for finding the distance it has fallen in free fall.
SO plug in the value for t into the equation.
i. 5 m
ii. 20 m
iii. 45 m/s
iv. 125 m/s
Use the previous formula (v = gt) to find the time it has fallen:
v = gt
30 m/s = 10 m/s^2 * t
t = 3 s
So it has fallen for 3 seconds.
Use the 3 seconds to find the distance it has fallen in free fall:
d = 1/2gt^2
d = 1/2 * 10 m/s^2 * 3^2 s
d = 45 m
Explanation:
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