Question

PLEASE HELP ):
An object pulled to the right by two forces has an acceleration of 2.5 m/s2. The free-body diagram shows the forces acting on the object.

What is the weight of the object?

Answer 1

The first thing we must do for this case is the sum of forces in a horizontal direction.

We have then:

$F1 + F2 = m * a$

Substituting values we have:

$50 + 75 = m * 2.5$

From here, we clear the mass of the object:

$m * 2.5 = 125 m = 125 / 2.5 m = 50 Kg$

We now look for the weight of the object.

$W = m * g$

Where,

g: acceleration of gravity (9.8 m/s^2)

Substituting values:

$W = 50 * 9.8 W = 490 N$

Answer:

the weight of the object is:

$W = 490 N$

option 4

Answer 2

Answer:

490 N

number 4

Explanation: