Convert 31 mph to m/s. Round to the nearest hundredth.

Please answer fast

A cannon fires a cannonball directly upward at 300 m/s. How long (in s) does the cannonball move upward before stopping, and what is the maximum height (in m) reached by the cannonball?

You drive West 30.0 km at 85 km/h and then drive East another 60.0 km at 95 km/h. Your average velocity for the entire drive will be... How would I go about solving this problem?

1. During a braking test, a car is brought to rest beginning from an initial speed of 60 mi/h in a distance of 120 ft. With the same constant deceleration, what would be the stopping distance "s" from an initial speed of 80 mi/h? Ans. 213 ft

a car travells 800 m north, 700m east, 1000m south; its final displacement is

14. The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub you toe in the dark, estimate the time it takes the nerve impulse to travel to your brain. (Assume that you are approximately 1.70 m tall and that the nerve impulse travels at uniform speed.)

You get in your car and drive north, accelerating up to 60mph. Draw your velocity vector and acceleration vector some time during your acceleration. How would these change if you encountered traffic and started to brake?