Why is it advantageous to roll with the punch in boxing? Rolling with the punch increases contact time, which decreases the force. Which undergoes the greatest change in momentum (if all of the baseballs have the same speed just before being caught and just after being thrown)?
Q. Is it easier to balance a long rod with a mass attached?
Is it easier to balance a long rod with a mass attached to it when the mass is closer to your hand or when the mass is farther away? It is easier when the mass is closer to your hand. It is equally easy in both cases. It is easier when the mass is farther from your hand.
Table of Contents
- Q. Is it easier to balance a long rod with a mass attached?
- Q. Which of the following has the largest momentum relative to the Earth’s surface?
- Q. What does it mean to roll with the punch?
- Q. What are two ways to increase impulse?
- Q. What has the greatest impulse?
- Q. Which Cart (# 1 or #2 has the greatest acceleration?
- Q. Why is momentum not always conserved?
- Q. Is momentum conserved in free fall?
- Q. Can we conserve momentum if friction is present?
- Q. Is the law of conservation of momentum violated?
Q. Which of the following has the largest momentum relative to the Earth’s surface?
Cards
| Term which of the following has the largest momentum relative to the earths surface? | Definition a pick up truck speeding along a highway |
|---|---|
| Term the conversation of momentum is closely related to…. | Definition newtons third law |
Q. What does it mean to roll with the punch?
Cope with and withstand adversity, especially by being flexible. For example, She’d had three different editors for her book, each with a different style, but she’d learned to roll with the punches. This term alludes to the boxer’s ability to deflect the full force of an opponent’s blow by adroitly moving his body. [
Q. What are two ways to increase impulse?
Impulse has to do with time, it is the amount of force sustained for a period of time. You can increase the impulse by increasing the force applied or by increasing the period of time the force is applied.
Q. What has the greatest impulse?
Explain. Balloon B has the greatest impulse. Impulse is equal to momentum change.
Q. Which Cart (# 1 or #2 has the greatest acceleration?
Which cart (#1 or #2) has the greatest acceleration? Explain. Cart #2 has the greatest acceleration. Recall that acceleration depends on force and mass.
Q. Why is momentum not always conserved?
The total momentum of both objects does not change. For this reason we say that the total momentum of the interacting objects is conserved. Newton’s third law implies that the total momentum of a system of interacting objects not acted on by outside forces is conserved.
Q. Is momentum conserved in free fall?
Linear momentum of a system remains conserved unless an external force acts on it. Since during free fall, a gravitational force acts on the body, it’s momentum will not remain conserved.
Q. Can we conserve momentum if friction is present?
Conservation of momentum applies when net force is zero. Total momentum of the system is zero before canonball is fired. Now canonball is fired from the canon, and in frictionless cases, horizontal-axis momentum of the whole system would be preserved.
Q. Is the law of conservation of momentum violated?
Conservation of momentum is violated only when the net external force is not zero. But another larger system can always be considered in which momentum is conserved by simply including the source of the external force.
