Name: ________________________________________________ Speed, Velocity, & Acceleration Practice Problems Formulas: plus direction Step 1 – Read the problem. Step 2 - Choose the right formula. Step 3 – Plug in your numbers. Step 4 – Use calculator to solve the math problem Step 5 – Write your answer, including units. 1. Find the average speed of a runner who runs 100m in 20 s. Formula Chosen Plug in the Numbers Answer (including units) 2. What is the average acceleration of a car heading East that speeds up from 9.6 m/s to 15 m/s in 6 s? Formula Chosen Plug in the Numbers Answer (including units) 3. An airplane takes off from Chicago and heads South, traveling 1,260 km in 3.5 hr. What is the plane’s average velocity? 4. Formula Chosen Plug in the Numbers Answer (including units) 5. In order to drive to my mother’s house, it takes me 8 hours to drive 540 miles. Could I get in trouble for speeding? Figure out my average speed to find out! Formula Chosen Plug in the Numbers Answer (including units) 6. A bicycle has a starting velocity to the west at 2 m/s and 6 seconds later a final velocity of 14 m/s West. What is the average acceleration? Formula Chosen Plug in the Numbers Answer (including units) 7. An airplane passes over point A at a velocity of 240 m/s North. Forty seconds later, it passes over point B at a velocity of 260 m/s North. What is the plane’s average acceleration? Formula Chosen Plug in the Numbers Answer (including units) Name: ________________________________________________ More Speed Problems. Fill in the triangle. Use it to help you with the following problems. 8. A man is walking at a speed of 6 m/s for 10 seconds. How much distance can he walk? Formula Chosen Plug in the Numbers Answer (including units) 9. Ms. Rary drives for 20 miles to get to work. She travels at a speed of 40 miles/hour. How long does it take her to get to work? Formula Chosen Plug in the Numbers Answer (including units) 10. A girl walks at 2 miles per hour for 6 hours. How far can she walk in this time? Formula Chosen Plug in the Numbers Answer (including units) Resultant Velocity Problems: Both moving the same direction = add Moving opposite directions = subtract. The larger velocity gives you the direction. 11. An airplane left Norfolk at a velocity of 800 km/hr North. The plane ran into a headwind traveling at 200 km/hr South. What is the airplane’s resultant velocity? 12. Figure out the resultant velocity for the boat in the picture. Boat = 20 knots downstream River current = 4 knots downstream Check your understanding (not a math problem): 13. My acceleration is -10 m/s/s. Am I speeding up or slowing down?