Constants Periodic Table A seesaw has a mass of 50 kg, a length of 3.0 m, and a fulcrum beneath its midpoint. It is balanced whe
n a 60-kg person sits on one end and a 84-kg person sits on the other end Part A Find a displacement of the center of mass of the seesaw relatively to the fulcrum. Express your answer with the appropriate units. Enter negative value if the center of mass is located closer to the 60-kg person and positive value if the center of mass is located closer to the 84-kg person alue Units Submit Request Answer Part B Consider a system consisting of a uniform 3.0-m long seesaw that has a mass of 50 kg and two people of masses 60 kg and 84 kg sitting on its ends. Find a displacement of the center of mass of the system relatively to the seesaw's midpoint. Express your answer with the appropriate units. Enter negative value if the center of mass is located closer to the 60-kg person and positive value if the center of mass is located closer to the 84-kg person alue Units
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We can begin by summing the forces acting on the stone when it is at the bottom of its trajectory.
Refer to the free-body diagram in the image below for clarification.
We have the force of tension (produced by the string) and the force of gravity acting in opposite directions, so:
The net force is equivalent to the centripetal force experienced by the stone. Recall the equation for centripetal force for uniform circular motion:
m = mass of object (1.2 kg)
v = velocity of object (? m/s)
r = radius of circle (0.75 m)
The centripetal force is the resultant of the forces of tension and gravity, and points upward (same direction as the tension force) since the tension force is greater.
Therefore:
We can solve the equation for 'v':
Plug in values and solve.
Answer: Option (a) is the correct answer.
Explanation:
Photosynthesis is defined as a chemical process in which plants tend to make their own food in the presence of sunlight, water and carbon dioxide.
During this process, product formed by the plants is glucose and oxygen.
The chemical reaction equation for photosynthesis is as follows.
Therefore, we can conclude that out of the given options the correct equation is as follows.