AP Physics1 Homework Assignments

1 AP Physics1 Homework Assignments Unit 1, One dimensional Kinematics, Weeks 1-3 Watch Flipping physics : ap physics 1: Kinematics Review Complete the following AP Free Response problems, accessible at 2016#3 (downhill speed bumps) Read Position and Displacement, Speed and velocity, Solving harder physics problems Read Acceleration, Gravity and Free Fall Alternate Readings: ap physics , chapter 2 Kinematics HW Problems 1. A student driving to visit grandparents one weekend is traveling at 100 km/hr for 200 km. It then starts to snow and the student slows to 60 km/hr. The student arrives at her grandparents house after driving for 6 hours. Calculate the distance to the student s grandparents house.

2 A. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 2. A motorist travels for 3 hours at 80 km/hr and 2 hours at 100 km/h. Calculate the average speed for the trip. a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 3. A cart with an initial velocity of m/s experiences a constant acceleration of m/s2. Calculate the cart s displacement during the first s of its motion. a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 4. A bullet moving horizontally with a speed of 500 m/s strikes a sandbag and penetrates a distance of m.

3 Calculate the average acceleration of the bullet. a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 5. A car with good tires on a dry pavement can brake with negative acceleration of 5 m/s2. If the car is traveling at 30 m/s, calculate the stopping distance. a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 6. A train accelerates from 40 m/s to 80 m/s in a distance of 200 m. Calculate the average acceleration. a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 7.

4 A motorboat travels at 15 m/s for 10 s. It then accelerates at a constant rate of 2 m/s2 for 15 s. At the end of this time, what is its velocity? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 8. A mockingbird is flying in a straight line with constant acceleration. Initially it is flying at 16 m/s. Three seconds later it is traveling at 10 m/s. How far does it move during this time? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 9. A baseball starts from rest and undergoes uniform acceleration. During the first second it travels 5 m.

5 How far will it travel during the next second? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 10. A car and a truck both start at rest They both accelerate at the same rate. However the car accelerates for twice the time as the truck. How many times faster is the car s final velocity compared to that of the truck? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 11. A jet fighter plane is launched from a catapult on an aircraft carrier. It reaches a speed of 42 m/s at the end of the catapult, and this requires s. Assuming the acceleration is constant, what is the length of the catapult?

6 A. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 12. A car slows comes to rest with constant negative acceleration in 10 s. The average velocity during the trip was 15 m/s. Calculate the car s acceleration. a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 13. A motorcycle initially traveling at a speed of vx0 is able to stop in a distance d. Assuming the same braking force, calculate the distance necessary for the motorcycle to stop when its initial speed is 2vx0 a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above.

7 14. An airplane increases its speed from 100 m/s to 160 m/s at the average rate of 15 m/s2. How much time does it take for this increase in speed? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 15. A car starts from rest and accelerates uniformly at 3 m/s2. A motorcycle starts from rest s later at the same origin and accelerates uniformly for 5 m/s2. How much time does it take the motorcycle to overtake the car? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 16. A car starts from rest and accelerates uniformly at 3 m/s2. A motorcycle starts from rest s later at the same origin and accelerates uniformly for 5 m/s2.

8 How far does the motorcycle travel before it overtakes the car? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 17. Objects A and B both start from rest. They both accelerate at the same rate. However, object A accelerates for three times the time as object B. Object B travels for a distance d during that time period. In terms of d , how far does object A travel? a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. 18. An object is moving with constant non-zero acceleration in the +x direction. a. Draw a distance time graph for the above situation.

9 B. Draw a velocity time graph for the above situation. c. Describe what the slope of the velocity time graph means d. Describe what the area between the graph and the time axis means on the velocity time graph. 19. An object is moving along the +x axis and experiences an acceleration of m/s2 for time t. a. Draw a distance time graph for the above situation. b. Draw a velocity time graph for the above situation. c. Describe what the slope of the velocity time graph means d. Describe what the area between the graph and the time axis means on the velocity time graph. 20. A cart starts from rest and accelerates at m/s2 for 5 s. then maintains that velocity for 10 s, then accelerates at a rate of -2 m/s2 for s.

10 Calculate the final speed of the cart. a. Draw a velocity time graph for the kinematics problem above. b. Use kinematics equation to solve the kinematics problem above. Unit 2, Projectile Motion, Weeks 4-5 Complete the following AP Free Response problems, accessible at 2015#4(dropped and launched spheres) Read Displacement, velocity, and acceleration, projectile motion Alternate Readings: ap physics chapter 3: 2 Dimensional Kinematics HW Problems 1. A) Plot the DT, VT, AT graphs in both horizontal and vertical directions for the marble launched horizontally in the lab we did in class B) In a projectile T chart label the following quantities with the values known, measured, or calculated in the lab x, vx0, ax, y, vy0, vyf, ay, t 2.