<span>D. density is your answer</span>
Answer:
The centripetal acceleration of the car is
.
Explanation:
Let the mass of the car, 
Diameter of the circular path, d = 100 m
Speed of car, v = 20 m/s
Radius, r = 50 m
When an object moves in a circular path, the centripetal acceleration acts on it. It is given by :



So, the centripetal acceleration of the car is
. Hence, this is the required solution.
Answer:
Explanation:
Force = mass * acceleration.
C: the mechanical energy isn't conserved. Some energy was lost to friction.