What changes the speed of light
2 answers:
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The potential energy of the spring is 6.75 J
The elastic potential energy stored in the spring is given by the equation:
where;
k is the spring constant
x is the compression/stretching of the string
In this problem, we have the spring as follows:
k = 150 N/m is the spring constant
x = 0.3 m is the compression
Substituting in the equation, we get
Therefore. the elastic potential energy stored in the spring is 6.75J .
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Answer:
Velocity = 0.105m/s
Explanation:
Using conservation of momentum:
Momentum before impact= mass of ball × velocity of ball
= 0.400×10.8= 4.32
Momentum after impart= mass of ball × velocity of ball + mass of olaf × velocity of olaf
= 4.35 +3.56 + 74.9Vf
Vf=7.88_74.9 = o.0.105m/s
