Question

the greater and least resultant of the two force are 7N & 3N respectively .'If each of the force is increased by 3 N and applied at 60 degrees.'
Calculate the magnitude of the resultant force.

Answer 1

@hartnn
@inkyvoyd

Answer 2

Ok, let the two forces be A and B. Now, the greatest resultant will be when the two forces are acting in same direction and least resultant will be when they are acting in opp direction.So you get two equations.

A+B = 7
A-B = 3

Answer 3

Solve the two equations to get the value of A and B. Now you can do the next part of the question.

Answer 4

a = 10?

Answer 5

2A = 10
So, A = 5

Answer 6

b =2

Answer 7

Yes, now do the next part of the question

Answer 8

so each would be 8 and 5 righT?
adding 3 to each?

Answer 9

Yes.

Answer 10

what next?

Answer 11

Use the following formula to find their resultant

\(\sf |\vec A + \vec B| = A^2+B^2 + 2AB \times cos \theta\)

Answer 12

64
+25 right?

Answer 13

Sorry, the formula is \(\sf \sqrt{A^2+B^2 + 2ABcos\theta}\)

Answer 14

A=8
B=5
\(\sf \theta = 60\)

Answer 15

whats the value of cos 60?

Answer 16

0.5

Answer 17

sqrt129

Answer 18

Correct

Answer 19

I need help with a few more questions n thanks.