Question

4. While you are driving 30 m/s you notice a 20 m/s speed zone just 35m ahead. What acceleration do you need to stay within the speed limit? How much time does it take to slow down to this new speed, assuming you can?

5. You want to deliver frozen worms to some baby birds high in a tree by shooting the worms at 10m/s from a gun aimed 75 0 upwards from the horizon. To prevent injuring the little ones you want the nest to be at the top of the arc. What is the highest nest you can 'delived to, and what horizontal distance from the nest should you shoot?

Answer 1

At the maximum height the vertical i.e y-component of velocity becomes zero hence the chances of injury reduces to zero.