Question

Determine la magnitud de la fuerza que se debe aplicar a un carrito de baleros que tiene una masa de 40kg para que cambie la magnitud de su velocidad de 0 a 3 m/s en un segundo

Answer 1

By definition we have the force is:

`F = m * a`
Where,
m: mass
a: acceleration.
To find the acceleration we have the following formula:

`vf = a * t + vo`
Where,
vo: initial speed
vf: final speed
a: acceleration
t: time
Clearing the acceleration we have:

`a = (vf - vo) / (t)`
Substituting values:

`a = (3 - 0) / (1) a = 3 m / s ^ 2`
Then, the force is given by:

`F = (40) * (3) F = 120 N`
Answer:
The magnitude of the force that must be applied is:

`F = 120 N`