Answer:
The period of the pendulum is 1.816 sec.
Step-by-step explanation:
Given that,
Length = 81.9 cm
Mass = 165 g
Angle = 10°
We need to calculate the period of the pendulum
Using formula of period
![T = 2\pi\sqrt{(l)/(g)}](https://img.qammunity.org/2020/formulas/physics/college/z08ehvh61str5aesg2pt5827c7phiqhsz8.png)
Where, l = length
g = acceleration due to gravity
Put the value into the formula
![T =2\pi\sqrt{(81.9*10^(-2))/(9.80)}](https://img.qammunity.org/2020/formulas/physics/college/jenf5u665zraatxahkgi058596l8bxg2m9.png)
![T=1.816\ sec](https://img.qammunity.org/2020/formulas/physics/college/rnsofz2ycl3k2oan2cxh830s9irbw23yiq.png)
Hence, The period of the pendulum is 1.816 sec.