Answer:
Energy in carriage (Potential energy) = 4,116 J
Explanation:
Given:
Mass of baby = 20 kg
Height = 21 m
Find:
Energy in carriage (Potential energy)
Computation:
The energy accumulated in an object as a result of its location relative to a neutral level is known as potential energy.
In carriage accumulated energy is potential energy.
Energy in carriage (Potential energy) = mgh
Energy in carriage (Potential energy) = (20)(9.8)(21)
Energy in carriage (Potential energy) = 4,116 J
Answer:
Duration
Explanation:
Because duration is not a factor, but it's the outcome or effect or observation from the reaction used to give the rate of reaction
We are given an object sliding down an incline with a friction force. A free-body diagram of the system is the following:
Now we will add the forces in the x-direction:
We will consider the forces that are in the direction of the movement as positive and the ones in the direction against the movement as negative. Plugging in the forces:
Now we solve for the friction force:
Multiplying both sides by -1:
Now we determine the x-component of the weight using the following triangle:
From the triangle we can use the function cosine as follows:
From this we can solve for the x-component of the weight by multiplying both sides by "mg":
Now we use this expression and replace it in the sum of forces:
Now we plug in the known values:
Solving the operations:
Therefore, the friction force is 171.5 Newtons.
A person who is interested in studying science.