In 20 seconds, the speed of a motor changes from 1200 rpm to 1800 .In this period , of number of revoutions completed by it is

Question

In 20 seconds, the speed of a motor changes from 1200 rpm to 1800 .In this period , of number of revoutions completed by it is

In 20 seconds, the speed of a motor changes from 1200 rpm to 1800 .In this period , of number of revoutions completed by it is
A. 500
B. 400
C. 200
D. 100

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - A
`N=(n_(1)+n_(2))/(2)xxt=25xx20=500`.

5 views Answered 2023-02-05 15:29