The measure of an angle plus the measure of its complement must add up to 90. To solve this problem, we can set up a simple equation, letting the complement of the angle equal x.
61 + x = 90
To isolate the variable, we must subtract 61 from both sides and combine like terms.
61 - 61 + x = 90 - 61
x = 29
Therefore, the measure of the complement of an angle measuring 61 degrees measures 29 degrees.
The initial velocity: v o = 20 m/s.And : a = 1.5 m / s² , t = 5 s.The final velocity formula:v = v o + a · tv = 20 + 1.5 · 5v = 20 + 7.5v = 27.5 m /sAnswer: The car`s final velocity is 27.5 meters / second.