Respuesta :
smartphones break due to forces acting on the material.
force causes material to deform.
material is often brittle and cracks due to a limit on hardness / electricity in screens.
newton's 2nd law states
force = DV / DT
to help phones we must slow down change in momentum to reduce the force
thus we must use some form of damping in the form of a case .
the case is typically able to deform and rubber is elastic converting the kinetic energy to heat as it deforms instead of transferring it through the screen.
therefore the change in velocity occurs over a longer time. therefore the impulse decreases
By decreasing the velocity of the strike the change in the momentum is less resulting in a less impulsive force that can protect a smartphone screen during a collision.
What is Newton's Second Law of Motion?
Newton's second law of motion is concerned with the behavior of objects for which all existing forces are imbalanced.
The force is given as the product of mass and change of velocity. The impulsive force is given by the change in momentum.
[tex]\rm I=\frac{m(v-u)}{} \\\\ \frac{m(v-u)}{}= \rm Ft \rm \\\\ \rm F= \frac{m(v-u)}{t}[/tex]
Smartphones break due to forces acting on the material force causing the material to deform. Material is often brittle and cracks due to a limit on hardness in screens.
To help phones we must slow down changes in momentum to reduce the force.
Hence, by decreasing the velocity of the striking the change in the momentum is less resulting in a less impulsive force.
To learn more about Newton's second law refer to the link;
https://brainly.com/question/13447525
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