Answer:
a
[tex]a = 9.8 \ m/s[/tex]
Increasing
b
[tex]s = 6.22 \ m[/tex]
Explanation:
From the question we are told that
The initial speed is [tex]u = 9.7 \ m/s[/tex]
The time taken is [tex]t = 0.51 \ s[/tex]
Generally given that the stone is moving downward the acceleration is equivalent to the generally value of acceleration due to gravity and it would be increasing as the stone approaches the ground(toward the center of the earth )
Thus the acceleration is [tex]a = 9.8 \ m/s[/tex]
Generally from the equation of motion we have that
[tex]s = ut + \frac{1}{2} at^2[/tex]
=> [tex]s = 9.7 * 0.51 + \frac{1}{2} *9.8 * 0.51^2[/tex]
=> [tex]s = 6.22 \ m[/tex]
