(1) The pendulum will have maximum velocity at the lowest point and it will be the most difficult point to stop.
(2) Velocity at maximum height is zero and it will be the easiest point to stop the pendulum.
(3) The total mechanical energy of the pendulum would be the same at all point.
<h3>Point of maximum velocity of the pendulum</h3>
A pendulum has maximum kinetic energy at the lowest point. The kinetic energy is given as;
K.E = ¹/₂mv²
The pendulum will have maximum velocity due to maximum kinetic energy at the lowest point and it will be the most difficult point to stop.
<h3>Point of maximum height of the pendulum</h3>
A pendulum has maximum potential energy at the highest point. The potential energy is given as;
P.E = mgh
Velocity at maximum height is zero and it will be the easiest point to stop the pendulum.
<h3>Conservation of energy</h3>
In absence of friction, the total mechanical energy will be conserved. Thus, the total mechanical energy of the pendulum would be the same at all point.
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Explanation:
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Answer:
The object distance is 20cm
Explanation:
Given
Magnification = -1.5
Image distance = 30 cm.
Required
Object Distance
We can calculate the object's distance using magnification formula;
M = -V/U
Where M = Magnification = -1.50
V = Image Distance = 30cm
U = Object Distance
Substitute the above parameters in the formula above.
-1.50 = -30/U
Multiply both sides by -1
-1.50 * -1 = -30/U * -1
1.50 = 30/U
Multiply both sides by U
1.50 * U = 30/U * U
1.50U = 30
Divide through by 1.50
1.50U/1.50 = 30/1.50
U = 30/1.50
U = 20cm
Recall that U represented the object distance.
Hence, the object distance is 20cm
Explanation:
The factors that affect gravity are as follows:
1. mass of body
2. acceleration
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In this graph, what is the displacement of the particle in the last two seconds?of the particle in the last two seconds?
<span>0.2 meters
2 meters
4 meters
6 meters</span>
In this graph, the displacement of the particle in the last two seconds is 2 meters.
