A 42-Kg Object,initially at Rest,"explodes" into Three Objects of Equal Mass

question 8

Multiple Choice

A 4.2-kg object,initially at rest,"explodes" into three objects of equal mass.Two of these are determined to have velocities of equal magnitudes (5.0 m/s) with directions that differ by 90 $\degree$ .How much kinetic energy was released in the explosion?

• A)70 J
• B)53 J
• C)60 J
• D)64 J
• E)35 J

---

Definitions:

Hypnosis

A trance-like state characterized by increased focus, concentration, and suggestibility.

Incorrect Memories

Memories that are distorted or completely fabricated, often due to misinformation, suggestion, or memory blending.

Hypnotized

The condition of being in a state of hypnosis, often characterized by increased responsiveness to suggestions.

Childhood

The period in human development from infancy to puberty, characterized by growth, learning, and play.