Chapter 4, Problem 100QRT

Interpretation Introduction

Interpretation:

The fast that the given iron ball travel with kinetic energy of $15.75J$ has to be indicated.

Concept Introduction:

Kinetic energy is the energy possessed by a body in motion.

  ${\text{E}}_{\text{k}}\text{=}\raisebox{1ex}{$\text{1}$}\!\left/ \!\raisebox{-1ex}{$\text{2}$}\right.{\text{mv}}^{\text{2}}$

Where m is the mass and v is the velocity of the object.