5. You are driving on the freeway at 75 mph (33.5 m/s). How much distance should be between you and the car in front of you for you to stop safely if they were to slam on their brakes (assuming that you both stop with
exactly same distance)? Remember as your brain recognizes the brake lights are on in the car in front of you and
tells you to brake (reaction time) you are still traveling at 75mph. If you can't stop in time but had enough time
to swerve, should you drive with you left hand or your right hand?

As part of your daily workout, you lie on your back and push with your feet against a platform attached to two stiff springs arranged side by side so that they are parallel to each other. when you push the platform, you compress the springs. you do an amount of work of 79.0 j when you compress the springs a distance of 0.230 m from their uncompressed length. (a) what magnitude of force must you apply to hold the platform in this position? (b)how much additional work must you do to move the platform a distance 0.230 m farther? (c) what maximum force must you apply to move the platform a distance 0.230 m farther?