A bicycle starts from rest and moves at constant acceleration of 4m/s2 to the right. A) How long does it take the bicycle to cover a distance of 6m from where it started from rest? B) What is the velocity of the bicycle at 6m?

A roller coaster car starts going down a hill from rest. It accelerates at 4.0 m/s2. If it is on the hill for 6.0 s, how fast (in m/s) is it going at the bottom of the hill?  How long (in m) is the hill in the previous problem?

Consider a runner traveling with an initial velocity of 3.1 m/s in the positive direction accelerates at a constant rate of 1.8 m/s2 for a time of 3 seconds. What distance does the runner cover during this process? The distance traveled by the runner is ? m.

A model rocket is launched straight upward with an initial speed of 40.0 m/s. It accelerates with a constant upward acceleration of 1.50 m/s2 until its engines stop at an altitude of 180 m.  what is the max height reached by rocket? how long after liftoff does the rocket reach its max-height? how long is the rocket in the air?

A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.10 m/s² for 18.0 s. 2. Maintain a constant velocity for the next 1.50 min. 3. Apply a constant negative acceleration of -9.02 m/s² for 4.19 s. (a) What was the total displacement for the trip? m (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? leg 1 m/s leg 2 m/s leg 3 m/s complete trip m/s

A person walks at a constant speed of 4.0 m/s along a straight line from point a to point b and back along the line from point b to a at a constant speed of 3.20 m/s. What is her average speed over the entire trip? What is her average velocity over the entire trip?

A record of travel along a straight path is as follows: 1. Start from rest with constant acceleration of 2.05 m/s² for 16.0 s. 2. Maintain a constant velocity for the next 1.80 min. 3. Apply a constant negative acceleration of -9.25 m/s² for 3.55 s. (a) What was the total displacement for the trip? m (b) What were the average speeds for legs 1, 2, and 3 of the trip, as well as for the complete trip? leg 1 m/s leg 2 leg 3 complete trip m/s m/s m/s

You were playing POP POP crackers with your neighbor's kids. To show off your speed, you threw a POP POP cracker at an initial speed of 7.0 m/s downward. The height above ground where you let go of the cracker was about 1.0 m. The cracker popped upon impact with the ground. How long did the kids have between the throw (you let go of the cracker at its initial speed) and the pop (the cracker impacts the ground) to cover their ears and scream? You can assume the final position to be zero. The cracker has negligible amount of air drag. Hint: the cracker has a downward initial velocity. Please include enough significant figures (3 sig. figs.) to ensure your answer is within 5% of the correct answer.