A 100 kg cart goes around the inside of a vertical loop of a roller coaster. The radius of the loop is 3 m and the cart moves at
1 answer:
The centripetal force acting on the object is 1200N
<u>Explanation:</u>
Given-
mass, m = 100kg
radius, r = 3m
Velocity, v = 6m/s
Force, F = ?
When an object moves in a circular motion, then centripetal force acts on it.
We know,
Centripetal force, Fc = mv²/r
Fc =
Fc = 1200N
Therefore, the centripetal force acting on the object is 1200N
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Answer:
Force, F = 187.42 N
Explanation:
It is given that,
Mass of boy, m = 30 kg
Acceleration due to gravity,
Radius of curvature of the roller coaster, r = 15 m
Speed of the car, v = 7.3 m/s
The force acting on the boy are force of gravity and the centripetal force. The net force acting on him is as follows :
F = 187.42 N
So, he press against the seat with a force is 187.42 N. Hence, this is the required solution.
Answer:
2.5 m/s
Explanation:
The speed of the animal is given by the ratio between the distance travelled by the animal and the time elapsed:
where d is the distance travelled and t the time elapsed. Note that this quantity is also equal to the slope of the curve.
In the time interval 0-20 s, we have
d = 50 m - 0 m = 50 m
t = 20 s - 0 s = 20 s
So, the speed is