All objects moving in a circle experience a centripetal force. The form of centripetal force depends on the object in circular m
1 answer:
Answer:
The force of friction as a car drives around a corner at constant speed
Explanation:
The centripetal force is an external resultant force that is directed towards the center of circle which object is rotated and perpendicular to the direction of velocity.
The force of friction is always towards the center of the arc with car is turned and it is always perpendicular to the direction of motion.
We also can derive equation,
by considering friction as the centripetal force.
Check the attachment for workings.
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Answer:
v = 12.12 m/s
Explanation:
Given that,
Radius of the curvature, r = 30 m
To find,
The car's speed at the bottom of the dip.
Solution,
Let mg is the true weight of the passenger. When it is moving in the circular path, the centripetal force act on it. It is given by :
The normal reaction of the passenger is given by :
N = 1.5 mg
Let v is the car's speed at the bottom of the dip. It can be calculated as:
v = 12.12 m/s
So, the speed of the car at the bottom of the dip is 12.12 m/s. Hence, this is the required solution.