Applied Mechanics - Engineering

Q1:

If two forces of 3 kg and 4 kg act at right angles to each other, their resultant force will be equal to

A 7 kg

B 1 kg

C 5 kg

D 1/7 kg

E none of these.

ANS:C - 5 kg

3 * 3 = 9
4 * 4 = 16
16 + 9 = underoot 25= 5 ans.