Question

calculate the length of a seconds pendulum taking gravity (g) equal to 9.8 metre per second square (a seconds pendulum is a simple pendulum having a time period of 2 seconds)​

Answer 1

Answer:1m

Explanation:T=2π√l/g

• given t =2sec and g=9.8
• put the values

2=2π√l/9.8

• square bothe side

4=4π²*l/9.8

9.8=π²*l

9.8=9.8*l

l=1m