013 10.0 points Evaluate [r]; i.e., the units of r, in the expres- sion (s - a) (8 - b) (8- c) where & = (atb+ c), and a, b, and c have units of meters. 1. r=m 1/2 2. r=m' 1 3. = = m A. r = m 1/3 1 5. r = = m2 G. = 7. = m1/3 B. r= m 9. r = m 014 10.0 points Consider the expression 2x , where & is length and g is gravitational acceleration in units of length divided by time squared. Evaluate its units. 1. m 2. = m 3. 4 A 7. m 8. m 015 10.0 points A car accelerates from rest at 6.6m/83. How much time does it need to attain a speed of 5m/ 8? Answer in units of s. 016 10.0 pointsAn object moving on the r axis with a con- stant acceleration increases its & coordinate by 156 m in a time of 6.33 s and has a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion. Answer in units of m/s-. 017 10.0 points A particle moving at a velocity of 2.3m/'s in the positive z direction is given an acceleration of 3.9m/s' in the positive y direction for 2.2s. What is the final speed of the particle? Answer in units of m/s. 018 10.0 points Initially (at time t = 0) a particle is mov- ing vertically at 4.3 m/s and horizontally at 0 m/a. Its horizontal acceleration is 1.6 m/s to the right. The acceleration due to gravity is 9.8 m/s' downwards. At what time will the particle be traveling at 38 with respect to the horizontal? Answer in units of s. 019 (part 1 of 2) 10.0 points Consider the setup of a gun aimed at a target (such as a monkey) as shown in the figure. A P The target is to be dropped from the point A at t = 0, the same moment as the gun is fired. The bullet hits the target at a point P. Let the initial speed of the bullet be up = 102 mys, let the angle between the vector Vo and the horizontal (x) direction be 0 = 47.6' and let AB = 98.2 m. The distanced = OBkolsawala (afk472) - 1-PHY317K is the r-coordinate of the target. The acceleration of gravity is 9.8 m/s". The time taken to hit the target is given by 1. 2. - 3. Jo cot S 020 (part 2 of 2) 10.0 points The height BP where the collision takes place Answer in units of m