A bird is carrying a fish in its claws as it flies along in a horizontal directi
ID: 1527507 • Letter: A
Question
A bird is carrying a fish in its claws as it flies along in a horizontal direction above a take. The bind accidentally drops the fish. As seen from the lakeshore, which path would the fish most closely follow after leaving the bird's claws? A 10-kg rock and 20-kg rock are dropped from the same height and experience no significant air resistance. If it takes the 20-kg rock a time T to reach the ground, what time will it take the 10-kg rock to reach the ground? A) 4 T B) 2 T C) T D) T/2 E) T/4 A car is slowing down as it drives over a circular hill. Which of these is the acceleration vector at the highest point? Circle your answer on the graph right This acceleration will cause the particle to A) Speed up and curve lo the left. Speed up and curve to the right. Slow down and curve lo the left. D) Slow down and curve to the right. E) Travel at constant speed and reverse direction The figure shows four vectors, A, B, C, and D, having magnitudes 12.0 m, 10.0 m, 8.0 m, and 4.0 respectively. The sum of these four vectors is A) 16.4 m at an angle 77.8 degree with respect to +x-axis. B) 16.4 m at an angle 12.3 degree with respect to +x-axis. C) 19.5 m at an angle 77.8 degree with respect to +x-axis. D) 19.5 m at an angle 12.3 degree with respect to +x-axis. E) 8.20 m at an angle 77.8 degree with respect to +x-axis.Explanation / Answer
6(i) When an object is droped from another object the speed of the first object will be the speed of the object from which it was dropped
so the answer is D
6(ii) B
7) C (the time taken to reach the ground is independent of mass.)
8) C
9) D