Answer:
I think it would be 50 millimeters per second
Step-by-step explanation:
600/30
 
        
                    
             
        
        
        
Sorry I'm not sure if I'm right just my thinking...
set the number to be x so that (5x+2)(3x-4)??
 
        
             
        
        
        
Answer:
the answer is c :)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
(a) 218.6 N 
(b) 97.14 N 
Step-by-step explanation:
When the system is in equilibrium, the net torque on the system is zero. 
AC = 1.5 m, CD = 2.3 m, DB = 5 - 1.5 - 2.3 = 1.2 m 
Let the centre of gravity of plank is at G. 
AG = 2.5 m, CG = 2.5 - 1.5 = 1 m, GB = 2.5 m 
(a) Let the reaction at C is R and at D is R'. 
 R + R' = 29 x 9.8 = 284.2 N ... (1) 
Take the torque about C. 
29 x 9.8 x CG = R' x GD 
29 x 9.8 x 1 = R' x 1.3 
R' = 218.6 N 
(b) Take the torque about D. 
6 x 9.8 x AD = R x CD 
6 x 9.8 x (1.5 + 2.3) = R x 2.3 
R = 97.14 N 
 
        
             
        
        
        
If you multiplied the base times the width times the height you would get a final answer of 60m.