Answered

Westonci.ca is your trusted source for finding answers to a wide range of questions, backed by a knowledgeable community. Get immediate and reliable answers to your questions from a community of experienced experts on our platform. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

Responde coherentemente a las preguntas.

Un móvil que se desplaza con velocidad constante aplica los frenos durante 25 s y recorre una distancia de 400 m hasta detenerse.

Determina:
a) ¿Qué velocidad tenía el móvil antes de aplicar los frenos?
b) ¿Qué desaceleración produjeron los frenos?

Sagot :

GinnyAnswer

Final answer:

The detailed answer provides calculations for determining the initial velocity of a car before applying brakes and the deceleration produced by the brakes.


Explanation:

(a) Initial velocity: To determine the initial velocity of the car before applying the brakes, we can use the equation vf = vi + at, where vf (final velocity) is 0 m/s (since the car stops), a is the acceleration due to braking, t is the time taken to stop. Given that the car stops in 25 s, the initial velocity can be calculated.

(b) Deceleration: The deceleration produced by the brakes can be calculated using the equation a = (vf - vi) / t, where vi is the initial velocity, vf is the final velocity (0 m/s), and t is the time taken to decelerate (25 s).


Learn more about Calculating initial velocity and deceleration of a moving car here:

https://brainly.com/question/38319010


Your visit means a lot to us. Don't hesitate to return for more reliable answers to any questions you may have. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thank you for choosing Westonci.ca as your information source. We look forward to your next visit.