Here are the answers to the quiz questions based on the provided information:
Question 2:
When a force is applied to an object for an amount of time, it is known as
Answer: impulse.
Question 3:
A bowling ball has a mass of 5 kg. What happens to its momentum when its speed increases from 1 m/s to 2 m/s?
Calculating momentum:
- Initial momentum = mass × initial velocity = 5 kg × 1 m/s = 5 kg*m/s
- Final momentum = mass × final velocity = 5 kg × 2 m/s = 10 kg*m/s
Answer: The initial momentum is 5 kgm/s, and the final momentum is 10 kgm/s.**
Question 4:
A baseball is traveling (+30 m/s) and is hit by a bat. It leaves the bat traveling (-40 m/s). What is the change in the velocity?
Calculating change in velocity:
- Change in velocity = final velocity - initial velocity = (-40 m/s) - (+30 m/s) = -40 m/s - 30 m/s = -70 m/s
Answer: -70 m/s
Question 5:
A basketball has a mass of 1 kg and is traveling 12 m/s. How fast would a 6 kg bowling ball have to travel to have the same momentum?
Calculating momentum:
- Basketball momentum = mass × velocity = 1 kg × 12 m/s = 12 kg*m/s
- For the bowling ball: 12 kg*m/s = 6 kg × velocity
Solving for velocity:
velocity = (12 kg*m/s) / (6 kg) = 2 m/s
Answer: 2 m/s
Feel free to ask if you have more questions or need further explanations!
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