Question

time period of a pendulum is 4 second. Find its length. (g=10m/s^2)​

Answer 1

T^2 = 4 pie^2 L/g

16 = 4 (3.14)^2 L/10

40/9.85 = L

4.06 = L

Answer 2

Answer: 80meter, sis

Explanation: