
GiveN:
- Initial velocity = 9.8 m/s²
- Accleration due to gravity = -9.8 m/s²
- Time taken = 1 s
To FinD:
- Final velocity of the ball?
Step-by-step Explanation:
Using the first Equation of motion,
⇒ v = u + gt
⇒ v = 9.8 + -9.8(1)
⇒ v = 0 m/s 
The final velocity is hence <u>0</u><u> </u><u>m</u><u>/</u><u>s</u><u>.</u>
<h3>
Note:</h3>
- While solving questions of under gravity motions using equations of motion, remember the sign convection to avoid mistakes.
- You can consider positive above the ground and negative for towards it.
 
        
             
        
        
        
Answer:
L/T^2.
Explanation:
Dimensional analysis is defined as the analysis of the relationships between different physical quantities by identifying their base quantities (such as length, mass, time, temperature etc.) and units of measure (such as miles vs. kilometers, pounds vs. kilograms etc.). 
F = m * a
kg(m/s^2) = kg * a
In dimensions, 
a = L/T^2.
 
        
             
        
        
        
Answer:
2.72 km 
Explanation:
(12.33 km)/ 1 hr * (1 hr)/ 60 min 
0.2055 km/ min
distance=rate * time (assuming v is constant, 
a=0)
(0.2055 km/ min)*(13.22 min)
2.72 km OR 2716.71 m 
 
        
                    
             
        
        
        
Answer:
Hindi ko po alam
Explanation:
Kaya sa iba ka nalang mag tanong kac Bobo ako jaan