Posted by **ashley --- HELP PLEASEE!!!** on Saturday, April 30, 2011 at 7:27pm.

Which of the following statements is true about a mass, which is attached to a spring and moves with simple harmonic motion on a frictionless horizontal surface?

Choose one answer.

a. The kinetic energy of the mass is maximum at the end positions.

b. The kinetic energy of the mass is maximum at the equilibrium position.

c. The potential energy of the mass is maximum at the equilibrium position.

d. The potential energy of the mass is minimum at the end positions.

- physics -
**MathMate**, Saturday, April 30, 2011 at 10:58pm
Kinetic energy of the mass is related to the square of the velocity of the mass. Therefore to look for the maximum kinetic energy of the mass, we look for the location where the mass has the highest speed (squared). The kinetic energy of the mass is zero at the extreme positions because the velocity is zero there.

Potential energy of the spring is proportional to the square of the displacement from the equilibrium position. It is zero at the equilibrium position.

Make your choice and post for a check if you wish.

## Answer This Question

## Related Questions

- physics # 9 - 9. A block attached to a spring of negligible mass undergoes ...
- physics - A 0.20 kg object, attached to a spring with spring constant k = 10 N/m...
- simple harmonic motion. - A 5.80 kg object on a horizontal frictionless surface ...
- science - A 0.20 kg object, attached to a spring with spring constant k = 10 N/m...
- Physics - A 4.07 x 10-2-kg block is resting on a horizontal frictionless surface...
- Physics - A 4.07 x 10-2-kg block is resting on a horizontal frictionless surface...
- physics - A simple harmonic oscillator consists of a 1.1 kg block attached to a ...
- physics - A 5.7 kg block attached to a spring executes simple harmonic motion on...
- physics - ) A 4.8 kg block attached to a spring executes simple harmonic motion ...
- physics - A simple harmonic oscillator consists of a 1.1 kg block attached to a ...

More Related Questions