This exam consists of true-false questions worth 2 points each, traditional multiple-choice questions worth 3 points each, and enhanced multiple-choice questions worth 6 points each. The maximum possible score is 105. When the exam was given, the minimum "A" score was 92; the minimum "B" was 75; the minimum "C" was 57; the minimum "D" was 3. The mean was 73.6; the median was 75. Click here to see the formula sheet that came with the exam.

(T) True (F) False

(a) ball A hits the ground before ball B. (b) ball B hits the ground before ball A. (c) ball A and ball B hit the ground at the same time.

(a) y_{max} = 275 m (b) y_{max} = 490 m (c) y_{max} = 368 m (d) y_{max} = 608 m (e) y_{max} = 530 m

Which of the following is true:

(a) V_{G} = V (b) V_{G} > V (c) V_{G} < V

A student who can swim with a speed of 3 m/s in still water wants to get to the other side of a 400 m wide river whose waters flows downstream at 2 m/s. If she swims across in such a way that the time taken is the smallest possible, how far D is she swept downstream of the point on the opposite bank directly across from her starting point?

(a) 221 m (b) 400 m (c) 133 m (d) 267 m (e) 333 m

In the above situation, if she instead swims in such a way that her path as viewed by someone on the shore is straight across the river, how long does it take to get to the other side?

(a) 179 s (b) 112 s (c) 208 s (d) 92 s (e) 156 s

(a) D (b) 2D (c) 3D

A block is released from rest at the top of a frictionless ramp (inclined plane) that makes an angle of 25° with respect to horizontal. At the bottom of the ramp, after having slid a distance D_{1}, the speed of the block is observed to be 12 m/s. What is the length of the ramp D_{1}?

(a) 8.9 m (b) 11.8 m (c) 13.7 m (d) 15.2 m (e) 17.4 m

(a) 8.5 m/s (b) 6.9 m/s (c) 9.3 m/s (d) 14.2 m/s (e) 7.7 m/s

(a) The average acceleration of car A is less than the average acceleration of car B. (b) The average acceleration of car A is greater than the average acceleration of car B. (c) The average acceleration of car A is the same as the average acceleration of car B.

(a) 108 m/s (b) 94 m/s (c) 65 m/s (d) 70 m/s (e) 82 m/s

(a) Speed decreasing and turning upward. (b) Speed increasing and turning downward. (c) Speed constant and turning upwards.

A block of mass 50 kg is free to slide on a horizontal frictionless surface. A force F is applied as shown in the drawing, where the angle of the force above horizontal is 20°. As a result, the block has a horizontal acceleration of 4 m/s^{2}. What is the magnitude of the applied force F?

(a) 124 N (b) 343 N (c) 180 N (d) 367 N (e) 213 N

A block of mass 50 kg is free to slide on a frictionless inclined plane that makes an angle of 20° with respect to horizontal. A force F is applied as shown in the drawing, this time pulling parallel to the plane. As a result, the block accelerates up the plane at 4 m/s^{2}. What is the magnitude of the applied force F?

(a) T > T_{o} (b) T = T_{o} (c) T < T_{o}

(a) 3.2 × 10^{3} N (b) 6.6 × 10^{3} N (c) 9.8 × 10^{3} N (d) 1.3 × 10^{4} N (e) 1.5 × 10^{4} N

(a) Ball 1 hits the ground before Ball 2. (b) Ball 1 hits the ground at the same time as Ball 2. (c) Ball 1 hits the ground after Ball 2.

(a) 47.9 m/s (b) 46.4 m/s (c) 33.9 m/s (d) 23.2 m/s (e) 16.9 m/s