How to find the missing angle if your only given one angle.

asssuming its a parallelogram

Step-by-step explanation:

parallelogram - the opposing angles equal each other, so if you have one, you have another as well. the total internal angles of a parallelogram equal 360 degrees, so

360 = 2x + 2y

where x is the angle that you have and y is the missing angle

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²