1 What is the velocity of a 54.2 kg jogger with a kinetic energy of 1100 J ?

To find the velocity of the jogger, we can use the kinetic energy formula, which is KE = 0.5 * m * v². Rearranging the formula gives us v = sqrt((2 * KE) / m). Plugging in the values, we get v = sqrt((2 * 1100 J) / 54.2 kg) which calculates to approximately 7.3 m/s. So, the jogger is cruising along at a nice pace! Understanding kinetic energy isn't just for physics homework—it has real-world implications! For example, urban planners use these concepts to design safer roads. By knowing how velocity affects stopping distance, they can create better traffic systems to keep pedestrians and cyclists safe. So next time you're out jogging or driving, remember that the physics behind your movement has a tremendous impact on safety and design in your community!