The car on the roller coaster is released from the position shown and allowed to roll freely.
2 answers:
Answer:
The energy changes from gravitational potential energy to kinetic energy to potential energy (static) again.
It does not have sufficient potential energy to overcome the 30 m elevation.
Explanation:
The car at its highest point possesses gravitational potential energy which is given by the following:
This energy upon rolling is converted to kinetic energy given by:\
The kinetic energy is then changed to static potential energy after the 10 m hump.
The car cannot react point X because from the 10 m hump it does not have sufficient potential energy to overcome the 30 m elevation.
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Answer:
819.78 m
Explanation:
<u>Given:</u>
- OA = range of initial position of the airplane from the point of observation = 375 m
- OB = range of the final position of the airplane from the point of observation = 797 m
= angle of the initial position vector from the observation point =
= angle of the final position vector from the observation point =
= displacement vector from initial position to the final position
A diagram has been attached with the solution in order to clearly show the position of the plane.
Displacement vector of the airplane will be the shortest line joining the initial position of the airplane to the final position of the airplane which is given by:
The magnitude of the displacement vector =
Hence, the magnitude of the displacement of the plane is 819.67 m during the period of observation.
