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When a spring is compressed... The potential energy is a minimum and kinetic energy is at...

When a spring is compressed...

The potential energy is a minimum and kinetic energy is at a minimum.
The potential energy is at a minimum and kinetic energy is at a maximum.
The potential energy is at a maximum and kinetic energy is at a minimum.
The potential energy is at a maximum and kinetic energy is at a maximum.

A ball mass 6 g is placed in front of a spring compressed by 7.21 cm. Right after launch, the ball acquired and initial velocity of 1.07 m/s.

A bullet with mass 71 grams hits a pendulum with length 30 cm and mass 276 grams and lodges in it. When the bullet hits the pendulum it swings up from the equilibrium position and reaches an angle 34 degrees at its maximum.

What is the bullet’s velocity in meters per second?

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