Acceleration and Velocity Problems

 
 
 

1) The head of a rattlesnake can accelerate at 50.0 m/s2 in striking a victim. If a car could have the same acceleration, how long would it take for it to reach a speed of 100.0 km/h from rest?

 
 
 
 
 

2) An airplane traveling southward is landing with a speed of 75 m/s. As it touches down, it has 800 m of runway to reduce its speed to 8.0 m/s. What is the acceleration of the plane as it slows down? (Make sure to give the sign too)

 
 
 
 
 

3) A skier, starting from rest, accelerates down a slope at 2.2 m/s2. How far has she gone after 5.0 s?

 
 
 
 
 

4) A soccer player, running at a speed of 3.2 m/s, decides to accelerate. For the next 20.0 m, he speeds up with an acceleration of 0.50 m/s2. What is his speed at the end of the run?