Question

9. Time period of a pendulum is 2 sec and length is 100 cm. Find acceleration due to gravity by using formula of its
-2
time period.​

Answer 1

Answer:

T=2π√l/√g

T=2x22/7x√1/√g

T=(44/7)X1/√g

2=(44/7)/√g

√g=44/14

g=(3.14)^2

g=9.8m/s2

Answer 2

Answer:

9.8m/sec^2

Explanation:

First apply the formula -----

$t \: = 2\pi \sqrt \frac{l}{g}$

And then put the value and solve for g.