Final answer:
When an object's velocity decreases by a factor of 10, its kinetic energy also decreases by a factor of 100. Therefore, if the initial kinetic energy is 100 J, the new kinetic energy will be 1 J. Therefore correct option is E
Step-by-step explanation:
The question pertains to the concept of kinetic energy, which is the energy that an object has due to its motion.
Kinetic energy (KE) is given by the formula KE = 1/2 * m * v2, where m represents the mass of the object and v is its velocity.
When the velocity of an object is decreased by a factor of 10, the new velocity is v/10.
Applying this change to the kinetic energy formula, we have the new kinetic energy
KE' = 1/2 * m * (v/10)2
= 1/2 * m * v2/100
= KE/100.
Since the initial kinetic energy is given as 100 J, the new kinetic energy after reducing the velocity by a factor of 10 is KE' = 100 J / 100
= 1 J.