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A simple pendulum is released from A as shown in figure. If 10 g and 100 cm represent the mass of the bob and length of the pendulum. what is the gain in K.E. at B? open parentheses text end text g equals 10 text end text m divided by s squared close parentheses

  1. 0.5 J  
  2. 5 cross times 10 to the power of negative 2 end exponent text end text J    
  3. 5 J  
  4. 0.5 cross times 10 to the power of negative 1 end exponent text end text J    

The correct answer is: 5 cross times 10 to the power of negative 2 end exponent text end text J

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