A car travels around a horizontal circular track, not at a constant speed.  The acceleration vectors at five different points are shown in bottom figure.  The four non-zero vectors have equal length and (a) is tangent to the circle.   Rank the speed of the car at the points shown.  Put a greater than symbol between letters if one is greater than the other, put an equal sign between them if they are equal.  Put a space or comma between all characters.  Example:  d = c > a > e > b

1 of 1. ▸ Part A Locate the centroid of the parabolic area. Take a = 7 in, h=19 in (Figure 1) Express your answer to three significant figures and include the appropriate units. Value Submit A 4 Provide Feedback Bequest Answer → Units

can someone explain why? with drawings too please.

You first walk 10 meters at an angle of 30 degrees East of North. Then,you walk 15 meters at an angle of 45 degrees South of East. Assume that East is +x and North is+y, and assume you started at the origin (0,0).   A. Make a graph with x- and y-axes and draw your path on that graph (to scale, or at least asclose as you can get). Start the first vector at the origin, and the second vector at the tip ofthe first vector. Then, draw the resultant vector (their sum).   B. Break each part of the walk into their x- and y-components and then sum them to get thex- and y-components of the resultant vector. Make sure to include units and unit vectors.     C. What is your displacement from where you originally started?   D. If the whole walk took 40 seconds, then what was your average velocity