Physics Practice Exam
... 6. Suppose that a particle moving along the x-axis has velocity as a function of time described by “v(t) = at³ + bt^4” where a=1m/s^4 and b=2m/s^5. What is the acceleration of the particle at t=3s? (A) a=0 m/s² (B) a=27 m/s² (C) a=189 m/s² (D) a= 216 m/s² (E) a=243 m/s² ...
... 6. Suppose that a particle moving along the x-axis has velocity as a function of time described by “v(t) = at³ + bt^4” where a=1m/s^4 and b=2m/s^5. What is the acceleration of the particle at t=3s? (A) a=0 m/s² (B) a=27 m/s² (C) a=189 m/s² (D) a= 216 m/s² (E) a=243 m/s² ...
Force and motion
... the time to change the velocity. i=Intial Velocity over time A = m/s2, V = m/s, t = s ...
... the time to change the velocity. i=Intial Velocity over time A = m/s2, V = m/s, t = s ...
review – midterm 2017
... 14. An automobile with an initial speed of 4.30 m/s accelerates uniformly at the rate of 3.00 m/s2 over 5.0 seconds. Find the final speed and the displacement of the car during this time. ...
... 14. An automobile with an initial speed of 4.30 m/s accelerates uniformly at the rate of 3.00 m/s2 over 5.0 seconds. Find the final speed and the displacement of the car during this time. ...
Connecting Motion with Force
... Force- a push or pull one body exerts on another. -Force does not always change velocity. Balanced forces- forces on an object that are equal in size and opposite in direction. Ex: Tug of War. ...
... Force- a push or pull one body exerts on another. -Force does not always change velocity. Balanced forces- forces on an object that are equal in size and opposite in direction. Ex: Tug of War. ...
Answers
... 3. The velocity of the car at any instant is (along the radius of) (tangent to) its circular path. 4. Since the car continues in uniform circular motion, component nx must equal (zero) (mv2/r) and be a (centripetal) (centrifugal) (nonexistent) force. Furthermore, nx is (along the radius of) (tangent ...
... 3. The velocity of the car at any instant is (along the radius of) (tangent to) its circular path. 4. Since the car continues in uniform circular motion, component nx must equal (zero) (mv2/r) and be a (centripetal) (centrifugal) (nonexistent) force. Furthermore, nx is (along the radius of) (tangent ...
Name:
... 7. What is the acceleration of both the hammer and the feather? Why is the acceleration the same for both objects? ...
... 7. What is the acceleration of both the hammer and the feather? Why is the acceleration the same for both objects? ...
Uniform Circular Motion
... Specify the period, τ , to complete one revolution. Specify the angular speed, ω. Specify the number of revolutions per unit time. ...
... Specify the period, τ , to complete one revolution. Specify the angular speed, ω. Specify the number of revolutions per unit time. ...
Name
... c Neither—they both have the same linear speed. 3. "Centrifugal forces" are an apparent reality to observers in a reference frame that is a rotating. b an inertial reference frame. c moving at constant velocity. d at rest. e none of the above 4. If you whirl a tin can on the end of a string and the ...
... c Neither—they both have the same linear speed. 3. "Centrifugal forces" are an apparent reality to observers in a reference frame that is a rotating. b an inertial reference frame. c moving at constant velocity. d at rest. e none of the above 4. If you whirl a tin can on the end of a string and the ...
WS 2 – Uniform Circular Motion - Physics `10-`
... identify the object that exerts the unbalanced force on the object that is moving with uniform circular motion. 4. What does the word centripetal mean and what does “centripetal” describe about a force? 5. A string's tension force supplies the centripetal force needed to keep a yo-yo whirling in a c ...
... identify the object that exerts the unbalanced force on the object that is moving with uniform circular motion. 4. What does the word centripetal mean and what does “centripetal” describe about a force? 5. A string's tension force supplies the centripetal force needed to keep a yo-yo whirling in a c ...
DISPLACEMENT AND FORCE IN TWO DIMENSIONS Choose the
... DISPLACEMENT AND FORCE IN TWO DIMENSIONS Choose the best answer for each of the following questions. Mark your answers on the answer sheet provided by your teacher. ...
... DISPLACEMENT AND FORCE IN TWO DIMENSIONS Choose the best answer for each of the following questions. Mark your answers on the answer sheet provided by your teacher. ...
Newton`s laws, forces
... Centripetal Force – Examples What force holds each in circular motion? A ball swung around on a string: ...
... Centripetal Force – Examples What force holds each in circular motion? A ball swung around on a string: ...
Chapter 11: Circular Motion
... 10. A satellite orbits at a height of 1.0800 x 107 m from the Earth’s center. What minimum velocity does the satellite need to have in order to maintain that orbit? (mass of Earth is 5.98 x 10 ...
... 10. A satellite orbits at a height of 1.0800 x 107 m from the Earth’s center. What minimum velocity does the satellite need to have in order to maintain that orbit? (mass of Earth is 5.98 x 10 ...
Physical Science Week 15
... Wednesday Warm Ups (127) • If your weight is 12 N on earth and your mass is 150 kg, what is your mass and weight on the moon if the gravity there is 1/6 the gravity found on earth? ...
... Wednesday Warm Ups (127) • If your weight is 12 N on earth and your mass is 150 kg, what is your mass and weight on the moon if the gravity there is 1/6 the gravity found on earth? ...
以人为本 深化改革 努力探索实验室开放的新路子
... 4. Assume that the Earth is a sphere and that the force of gravity (mg) points precisely toward the center of the Earth. Taking into account the rotation of the earth about its axis, calculate the angle between the direction of a plumb line and the direction of the Earth’s radius as a function of l ...
... 4. Assume that the Earth is a sphere and that the force of gravity (mg) points precisely toward the center of the Earth. Taking into account the rotation of the earth about its axis, calculate the angle between the direction of a plumb line and the direction of the Earth’s radius as a function of l ...
Projectile Motion
... • Imagine a pickup truck moving with a constant speed along a city street. • In the course of its motion, a ball is projected straight upwards by a launcher located in the bed of the truck. • What will be the path of the ball and where will it be located with respect to the pickup truck? • http://ww ...
... • Imagine a pickup truck moving with a constant speed along a city street. • In the course of its motion, a ball is projected straight upwards by a launcher located in the bed of the truck. • What will be the path of the ball and where will it be located with respect to the pickup truck? • http://ww ...
