Question

With the remaining system of equations, eq.2, eq.3, and eq.4*, the student now decides to eliminate the unknown a1. which two of the equations can be used to eliminate a1?

Answer 1

the two equations that can be used to eliminate a1 are (2) and (3).

Step-by-step explanation:

The equations are:

(2) -m1g * cosθ + T = m1 * a1

(3) a1 = a2

By substituting equation (3) into equation (2), we can eliminate a1:

-m1g * cosθ + T = m1 * a2