Answer:
ac = 2.86 m / s²
Explanation:
Image can detail the system to determine the force in the FA to understand the system into the applicated force 
m = 100 kg ,  L = 3 m 
∑ F = 0 ⇒ Ay - 100 kg + P * cos (45) = 0 
Ay = 768.86 N
∑ Mₐ = α * I ₐ 
I ₐ = m * L² / 3  ⇒  I ₐ = 100 kg * 4² m / 3 
Replacing 
P * sin (45) * 3 = α * 100 kg * 4² m / 3  
α = 1.193 rad / s² 
ac = α *2    ⇒  ac = 1.193 rad / s²  * 2 
ac = 2.86 m / s²
 
        
             
        
        
        
Answer:
c
Explanation:
though c is wider it has more water.
 
        
                    
             
        
        
        
Answer:They stop because jet streams follow boundaries between hot and cold air. 
Explanation: