Which demonstrates simple harmonic motion? a player dribbling a basketball a chandelier swinging from the ceiling a lion pacing
2 answers:
Answer : The correct option is (b).
Explanation :
The type of motion in which the restoring force is directly proportional to the displacement of a particle form the equilibrium position. This force acts in opposite direction.
x is the displacement
The example that shows the simple harmonic motion is (b) " a chandelier swinging from the ceiling ". This is because a chandelier moves to and fro from its equilibrium position and restores it.
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Answer:
ANGLE is 35.3 degree celcius
Explanation:
Given data:
mass m and 3m
initial speed Vi
particle with mass m is moving toward left while particle with mass 3m is moving toward right
By using conservation of momentum :
conservation of energy :
After collision, particle with mass m moves at right angles, thus by considering conservation of momentum in x & y direction,
x direction :
y direction :
subsitute these value in energy conservation
35.3 degree from x-axis
Answer:
1.47*10^{-8}s
Explanation:
You first calculate the distance traveled by the electron:
Next, you calculate the relative speed as measure by an observer in the positron, of the electron:
with this relative velocity you calculate the time: