Answer:
AC)=(AB)2+(BC)2−−−−−−−−−−−−√=42+32−−−−−−√ 
⇒displacement=16+9−−−−−√=25−−√=5m
 
        
             
        
        
        
Momentum - mass in motion
P=MV
P=(15,000 kg)(2.5 m/s)
P=37 500 kg x m/s to the north
Hope this helps
        
             
        
        
        
Answer:
W = 145.8 [N]
Explanation:
To solve this problem we must remember that weight is defined as the product of mass by gravity, in this case lunar gravity.
W = m*g
where:
m = mass = 90 [kg]
g = gravity acceleration = 1.62 [kg/m²]
W = 90*1.62
W = 145.8 [N]
 
        
             
        
        
        
<span>12-50t=70t, t= 0.1h = 6 minutes.</span>