The condition ∑ fi = 0 is sufficient to assure that a rigid body is in equilibrium.
true
false

The given statement:

The condition ∑ Fi = 0 is sufficient to assure that a rigid body is in equilibrium is a

TRUE statement.

According to the condition for the equilibrium of a rigid body, the vector sum of all the forces acting on the body must be zero.

The first condition of equilibrium for a rigid body is as follows:

                             ∑ Fi = 0

where the expression  ∑ Fi are the sum of all the forces acting on the body.

Hence, the given statement is a TRUE statement.

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47