Question

???????????? solve this​

Answer 1

Answer:

.......................

Answer 2

Answer:

16.5m

Explanation:

frequency = 400 vibrations per second

by simple unitary method,

400 --------- 1

1 --------- 1/400

so 20. --------- 1/400 × 20 = 1/20

so time taken will be 1/20 sec

speed = distance/time

330 = distance / 1/20

distance = 330×1/20

distance = 16.5 m

hope it helped.

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