Answer:
Tstring = 343.35 [N].
Explanation:
Since the block is in equilibrium, we can say that the sum of the forces on the Y-axis or vertical is equal to zero.
∑Fy = 0
[tex]T_{string}-W=0[/tex]
where:
Tstring = tension of the string [N]
W = weight of the block [N]
And the weight can be calculated multiplying the mass of the block by the gravity acceleration.
Now replacing:
[tex]T_{string}=m*g\\T_{string}=35*9.81\\T_{string}=343.35[N][/tex]