a lever is resting on a valve. the valve is located 3 in from the end of the lever. the total length of the lever is 9.5 in. a 4 lb force is present at the opposite end of the lever. the force makes a 28 deg angle with the lever. the lever makes a 20 deg angle with the horizontal. im supposed to find the moment about B, which is the spot where the lever comes in contact with the valve. the force in the vertical direction is -1.9 and the force in the horizontal direction is -3.5. i got these by multiplying the magnitude of the force by the cos and sin of the angle. i ended up with an answer of 12.35 lb * in. is that correct?