Physics, 13.02.2022 14:00 demelahar

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Speed, Velocity, and Acceleration Problems

Use your OWN PAPER, and show ALL work. Show the formula used, the setup, and the answer with the correct units.

I. Pete is driving down 7th street. He drives 150 meters in 18 seconds. Assuming he does not speed up or slow down, what is his speed in meters per second?

2. A person jogs 4.0 km in 32 minutes, then 2.0 km in 22 minutes, and finally 1.0 km in 16 minutes. What is the jogger's average speed in km per minute?

3. A train travels 120 km in 2 hours and 30 minutes. What is its average speed?

4. A plane's average speed between two cities is 600 km/hr. If the trip takes 2.5 hrs. how far does the plane fly?

5. George walks to a friend's house. He walks 750 meters North, then realizes he walked too far. He turns around and walks 250 meters South. The entire walk takes him 13 seconds. What is his speed per second?

6. In problem #5, what was George's velocity in meters per second? (hint: draw a picture to find his displacement)

7. A roller coaster's velocity at the top of a hill is 10 m/s. Two seconds later it reaches the bottom of the hill with a velocity of 26 m/s. What was the acceleration of the coaster?

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