Physics Honors Test Prep
7 Questions
| Total Attempts: 201
Test Prep for Test 2 Physics Honors at Pine Crest School.
Questions and Answers
- 1.Suppose a 60-kg boy and a 41-kg girl use a massless rope in a tug-of-war on an icy, resistance-free surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find the magnitude of the acceleration of the boy toward the girl.
- A.
2.05 m/s2
- B.
2 m/s2
- C.
2.1 m/s2
- 2.As a baseball is being caught, its speed goes from 29.0 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.130 kg. (a) What is the baseball's acceleration?
- A.
15800 m/s2
- B.
16000 m/s2
- C.
15800.0 m/s2
- D.
-16000 m/s2
- 3.As a baseball is being caught, its speed goes from 29.0 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.130 kg. (b) What are the magnitude and direction of the force acting on it? *Pick 2 answers*
- A.
754 N
- B.
750 N
- C.
Same direction as velocity of the ball
- D.
Opposite in direction to velocity of the ball
- 4.As a baseball is being caught, its speed goes from 29.0 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.130 kg. (c) What are the magnitude and direction of the force acting on the player who caught it? *Pick 2 answers*
- A.
754 N
- B.
750 N
- C.
Same direction as velocity of the ball
- D.
Opposite in direction to the velocity of the ball
- 5.A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 844 N. (a) As the elevator moves up, the scale reading increases to 930 N. Find the acceleration of the elevator.
- A.
1 m/s2
- B.
0.999 m/s2
- C.
0.99 m/s2
- 6.A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 844 N. (b) As the elevator approaches the 74th floor, the scale reading drops to 782 N. What is the acceleration of the elevator?
- A.
-0.720 m/s2
- B.
0.720 m/s2
- C.
-1 m/s2
- D.
1 m/s2
- 7.(c) Using your results from parts a and b, select which change in velocity, starting or stopping, takes the longer time. Think of an explanation.
- A.
Stopping
- B.
Starting
- C.
Neither
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