Answer:
Explanation:
When the pendulum falls freely the net acceleration due to gravity is zero.
As we know that the time period of simple pendulum is inversely proportional to the square root of acceleration due to gravity, thus the time period becomes infinity.
The best thing to do in this case is to redo the experiment and re record the info, it has to be precise and accurate so you also have to check if your procedure is correct. If the results are both accurate and precise then you have to report your findings to the committee of that specific field. <span />
A. 17 m/s. let me know if it’s correct
Answeill give it a go i guess
Explanation:
Year on Gravestone Thickness at bottom Time of weathering AOW
1758 78.5 258 2.4
1766 82.5 79.6 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4 nvm got lazy
A) 
The angular acceleration of the wheel is given by
where
is the initial angular velocity of the wheel (initially clockwise, so with a negative sign)
is the final angular velocity (anticlockwise, so with a positive sign)
is the time interval
Substituting into the equation, we find the angular acceleration:
And the acceleration is positive since the angular velocity increases steadily from a negative value to a positive value.
B) 3.6 s
The time interval during which the angular velocity is increasing is the time interval between the instant 
where the angular velocity becomes positive (so, 
) and the time corresponding to the final instant 
, where 
. We can find this time interval by using
And solving for 
we find
C) 2.4 s
The time interval during which the angular velocity is idecreasing is the time interval between the initial instant 
when 
) and the time corresponding to the instant in which the velovity becomes positive 
, when 
. We can find this time interval by using
And solving for we find
D) 5.6 rad
The angular displacement of the wheel is given by the equation
where we have
is the initial angular velocity of the wheel
is the final angular velocity
is the angular acceleration
Solving for 
,
