Answer:
The initial velocity is 12.34[m/s]
Explanation:
To understand this problem, let's draw a sketch of what is happening. In the attached image we can fin de sketch.
According to the equations of uniform movement accelerated we have to express them in the two components x and y.
In this problem we will analyze first the movement in the y axis and its equation to obtain the velocity in the initial point (o) and then with the angle of 33° respect to the horizontal we can find the main velocity.
In the previous equation we have the negative term - (2*a*y), the reason for the negative sign is because gravity is the acceleration that is acting downwards.
Therefore:
Now with the velocity in the y component, we can calculate the main vector of the velocity.
The main topic to understand in this problem is that when the height is maximum the velocity will be zero in the y component, therefore Vy=0 and we can simplify the problem.
I think it might be D because all waves travel through a medium. I might be wrong though.
The angular acceleration of the larger camshaft is 995.72 rad/s².
The given parameters;
- <em>initial angular velocity, </em><em> = 0</em>
- <em>time of motion, t = 0.032 s</em>
- <em>radius of the crankshaft, r = 3.75 cm </em>
- <em>final angular speed, </em><em> = 1250 rpm </em>
The angular acceleration of the 3.75 cm camshaft is calculated as follows;
The angular momentum of the camshaft is calculated as follows;
Thus, the angular acceleration of the larger camshaft is 995.72 rad/s².
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Answer:
1.it also hleps us to became doctors becuase without physics you can't be a doctor
2.physics needs to be steady whether you like it or not it helps you in life so everybody must study physics no matter is in Uganda USA and plenty more countries there must be physics to dare to be studied