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SI Units - Engineering

Q1:

One Netwon force equals

A 105 dynes

B 104 dynes

C 103 dynes

D 102 dynes

ANS:A - 105 dynes

As;

F = ma.

1N = kgm/sec^2.
1N = 1000g*100cm/sec^2.
=100000gcm/sec^2.

We know the unit of dyne is in the centimeter gram-second system of physical units.
Thus;

1N = 10^5 dyne.