Question

Two forces F =20 N and F2 =30N are acting on an object towards right and left respectively.
i) What is the net force acting on the object ?

Answer 1

Answer:

Magnitude of R

= √ (10^2 + 20 ^2 + 2* 10 *20 cos ( 60–30) )

= 29.09 N

To find direction

tan α = 20 sin 30 / ( 10 + 20 cos 30 )

α = 20.10 degree from the 10 N force.

From the x axis the angle is 30 + 20.1 = 50.1 degree.

Thanks to Mr. Brian Alan Whatcott , for directing me to furnish the correct direction.

Answer 2

Answer:

10N

Explanation:

Net force = F²-F¹

Net force = 30-20 = 10