Answer:
1.58 m/s².
Explanation:
The period of a simple pendulum is given as
T = 2π√(L/g)............................. Equation 1
Where T = Period of the simple pendulum, L = Length of the simple pendulum, g = acceleration due to gravity.
make g the subject of the equation.
g = 4π²L/T².......................... Equation 2
Given: L = 1.00 m, T = 75/15 = 5 seconds.
Constant: π = 3.14
Substitute into equation 2
g = 4(3.14)²(1)/5²
g = 1.58 m/s².
Thus her result = 1.58 m/s².
