Answered

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during a test crash an airbag inflates to stop a dummies forward motion. the dummies mass is 75 kg. if the net force on the dummy is 825N toward the rear of the car what is the dummies deceleration

Sagot :

Ewan
use Force=Mass x Acceleration (newtons second law states force is directly proportional to the acceleration) so you can say that the force is negative and solve for Acceleration.

Answer:

Dummies deceleration is 11m/s²

Explanation:

According to Newton's second law, the relationship between the force applied to an object, its mass, and the acceleration (or deceleration) caused, is given by:

[tex]F=ma[/tex]

Solving for acceleration:

[tex]a=\frac{F}{m}[/tex]

If we plug in the vales (taking into account the negative sign of the force, as its directed backwards):

[tex]a=\frac{-825N}{75kg}=-11m/s^2[/tex]

[tex]a=-11m/s^2[/tex]

Deceleration is simply the magnitude of negative acceleration. Therefore, dummies deceleration is 11m/s²

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