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The pendulum swings at an arc of 20 cm and its successive swings reduced to 10% of the previous swing. what will be the total distance travelled by the pendulum until it stops?
a. 500 cm
b. 400 cm
c. 200 cm.
d. 300 cm​


Sagot :

Answer:

d. 300

Step-by-step explanation:

Sn = 20 (2^5-1)

            (2-1)

Sn = 20 (2^4)

              1

Sn = 20 (16)

             1

Sn = 320

Sn = 320 - 20

Sn = 300

d. 300