Relative to the positive horizontal axis, rope 1 makes an angle of 90 + 20 = 110 degrees, while rope 2 makes an angle of 90 - 30 = 60 degrees.
By Newton's second law,
- the net horizontal force acting on the beam is

where  are the magnitudes of the tensions in ropes 1 and 2, respectively;
 are the magnitudes of the tensions in ropes 1 and 2, respectively;
- the net vertical force acting on the beam is

where  and
 and  .
.
Eliminating  , we have
, we have





Solve for  .
.



 
        
             
        
        
        
Answer:A student shoots a spitball with a perfectly horizontal velocity of 9.7 m/s from a height of 1.8 meters. How long will it take for the spitball to hit the ground?
(ignore air resistance) (include units and correct number of significant figures)
Explanation:La respuesta es porque esa es la respuesta, la respuesta al número es 9.7 1.8 Divide =53.888
 
        
             
        
        
        
Answer:
i think it is iron
Explanation:
its the only one that makes sense to me