Answer:
g / 16 
Explanation:
T = 2π 
 angular frequency ω = 2π /T
= 
ω₁ /ω₂ = 
Putting the values 
ω₁ = ω ,     ω₂ = ω / 4
ω₁ /ω₂ = 4 
4 =  
g₂ = g / 16
option d is correct. 
 
        
             
        
        
        
Energy cannot be created nor be destroyed
        
             
        
        
        
Answer:
250 m
Explanation:
The car in this problem is moving of uniform accelerated motion, so we can use the following suvat equation:

where
s is the distance covered
u is the initial velocity
t is the time
a is the acceleration
Assuming the car starts from rest,
u = 0
Also we know that
a = 5 m/s^2 (acceleration of the car)
t = 10 s
Substituting, we find the distance covered:
