Question

To win a basketball game, remember this: the best offense is a good defense. Make use of three strategies that have earned victories for many a team. First, stay in the defensive mode on the transitions. This is the easiest way to force a turn-over. It is also the best way to hang onto the ball when you've got it. Second, attack the boards. Games are decided by rebounds. Third, pressure your opponent. Running a full-court or half-court press will tire out your opponents, give them trouble in-bounding the ball, and force them to make mistakes which will work in your favor. Using this strategy will help you win more games.

Answer 1

To tackle effectively in football by using momentum, work, and energy, a player should keep their feet on the ground, using Earth as an anchor for applying force. This allows for more effective momentum transfer and energy conservation. A small force can achieve the same momentum change as a large force if applied over a longer time.

Step-by-step explanation:

Effective Football Tackling: Momentum, Work, and Energy

When football coaches advise players to keep their feet on the ground for blocks, hits, and tackles, they're drawing from principles that involve momentum, work, and energy. Making a tackle with feet planted on the ground allows a player to use the Earth's large mass as an anchor, which contributes to a more stabilizing force. This means the player can transfer momentum more effectively to the opposing player. Moreover, being grounded enables the player to apply a constant force over a distance (which is work), increasing the likelihood of a successful tackle. Additionally, keeping their feet on the ground helps in conserving energy as making contact with the ground nullifies any potential energy that would otherwise be wasted in a jump.

A small force can impart the same momentum as a large force if it is applied over a longer period of time. Since momentum is the product of mass and velocity (p = mv), as long as the product remains constant, the forces can vary inversely with time to achieve the same momentum change.