Question
8. Which of the following surfaces would have the lowest amount of friction?
a
Glass
b
Sand
c
Wood
d
Ice
9. A car engine provides 2500 N of force for a car that has a mass 1000 kg. If an engineer develops a new chassis for a car that is half as massive, what is the acceleration of the car with the new chassis?
a
2.5 m/s^2
b
5 m/s^2
c
8 m/s^2
d
1.3 m/s^2
10. He’s riding his skateboard down a ramp. Assume that his acceleration is 0.8 m/s2. How much force does it take for him to accelerate at this rate? Zeke has a mass of 50 kg.
A) 62.5 N
B) 50 N
C) 40 N
D) 40 kg
11. According to Newton's Third Law, if a hammer puts a force of 200 N on a nail, how much force does the nail put back on the hammer?
a
200 N
b
-200 N
c
50 N
d
150 N
12. Two bodies in contact experience forces in ________.
a
Five different directions
b
Opposite directions
c
Perpendicular directions
d
Same direction
13. Dansby Swanson hits a ball with a force of 5 N. What force does the bat experience?
a
0 N
b
5 N
c
10 N
d
20 N
a
Glass
b
Sand
c
Wood
d
Ice
9. A car engine provides 2500 N of force for a car that has a mass 1000 kg. If an engineer develops a new chassis for a car that is half as massive, what is the acceleration of the car with the new chassis?
a
2.5 m/s^2
b
5 m/s^2
c
8 m/s^2
d
1.3 m/s^2
10. He’s riding his skateboard down a ramp. Assume that his acceleration is 0.8 m/s2. How much force does it take for him to accelerate at this rate? Zeke has a mass of 50 kg.
A) 62.5 N
B) 50 N
C) 40 N
D) 40 kg
11. According to Newton's Third Law, if a hammer puts a force of 200 N on a nail, how much force does the nail put back on the hammer?
a
200 N
b
-200 N
c
50 N
d
150 N
12. Two bodies in contact experience forces in ________.
a
Five different directions
b
Opposite directions
c
Perpendicular directions
d
Same direction
13. Dansby Swanson hits a ball with a force of 5 N. What force does the bat experience?
a
0 N
b
5 N
c
10 N
d
20 N
Answers
GPT-4o mini
Here are the answers to your questions:
**8. Which of the following surfaces would have the lowest amount of friction?**
- **d. Ice** (Ice generally has lower friction compared to glass, sand, or wood.)
**9. A car engine provides 2500 N of force for a car that has a mass of 1000 kg. If an engineer develops a new chassis for a car that is half as massive, what is the acceleration of the car with the new chassis?**
- The mass of the new car = 1000 kg / 2 = 500 kg.
- Using Newton's second law (F = ma), we can find the acceleration (a):
\( a = \frac{F}{m} = \frac{2500 \, N}{500 \, kg} = 5 \, m/s^2 \)
- **b. 5 m/s^2**
**10. He’s riding his skateboard down a ramp. Assume that his acceleration is 0.8 m/s². How much force does it take for him to accelerate at this rate? Zeke has a mass of 50 kg.**
- Using Newton's second law (F = ma):
\( F = 50 \, kg \times 0.8 \, m/s² = 40 \, N \)
- **C) 40 N**
**11. According to Newton's Third Law, if a hammer puts a force of 200 N on a nail, how much force does the nail put back on the hammer?**
- According to Newton's Third Law, every action has an equal and opposite reaction.
- Therefore, the nail puts back a force of **a. 200 N**.
**12. Two bodies in contact experience forces in ________.**
- **b. Opposite directions** (According to Newton’s Third Law, the forces are equal in magnitude and opposite in direction.)
**13. Dansby Swanson hits a ball with a force of 5 N. What force does the bat experience?**
- According to Newton's Third Law, the bat experiences the same force in the opposite direction.
- **b. 5 N**
Let me know if you need any further clarification!
**8. Which of the following surfaces would have the lowest amount of friction?**
- **d. Ice** (Ice generally has lower friction compared to glass, sand, or wood.)
**9. A car engine provides 2500 N of force for a car that has a mass of 1000 kg. If an engineer develops a new chassis for a car that is half as massive, what is the acceleration of the car with the new chassis?**
- The mass of the new car = 1000 kg / 2 = 500 kg.
- Using Newton's second law (F = ma), we can find the acceleration (a):
\( a = \frac{F}{m} = \frac{2500 \, N}{500 \, kg} = 5 \, m/s^2 \)
- **b. 5 m/s^2**
**10. He’s riding his skateboard down a ramp. Assume that his acceleration is 0.8 m/s². How much force does it take for him to accelerate at this rate? Zeke has a mass of 50 kg.**
- Using Newton's second law (F = ma):
\( F = 50 \, kg \times 0.8 \, m/s² = 40 \, N \)
- **C) 40 N**
**11. According to Newton's Third Law, if a hammer puts a force of 200 N on a nail, how much force does the nail put back on the hammer?**
- According to Newton's Third Law, every action has an equal and opposite reaction.
- Therefore, the nail puts back a force of **a. 200 N**.
**12. Two bodies in contact experience forces in ________.**
- **b. Opposite directions** (According to Newton’s Third Law, the forces are equal in magnitude and opposite in direction.)
**13. Dansby Swanson hits a ball with a force of 5 N. What force does the bat experience?**
- According to Newton's Third Law, the bat experiences the same force in the opposite direction.
- **b. 5 N**
Let me know if you need any further clarification!