{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# HW3 - homework 03 PAPAGEORGE MATT Due 4:00 am Question 1...

This preview shows pages 1–2. Sign up to view the full content.

1 Question 1, chap 2, sect 2. part 1 of 1 10 points The graph below shows the velocity v as a function of time t for an object moving in a straight line. t v 0 t Q t R t S t P Which of the following graphs shows the corresponding displacement x as a function of time t for the same time interval? 1. t x 0 t Q t R t S t P correct 2. t x 0 t Q t R t S t P 3. t x 0 t Q t R t S t P 4. t x 0 t Q t R t S t P 5. t x 0 t Q t R t S t P 6. t x 0 t Q t R t S t P 7. t x 0 t Q t R t S t P 8. t x 0 t Q t R t S t P 9. None of these graphs are correct. Explanation: The displacement is the integral of the ve- locity with respect to time: Vx = i Vv dt . Because the velocity increases linearly from zero at Frst, then remains constant, then de- creases linearly to zero, the displacement will increase at Frst proportional to time squared, then increase linearly, and then increase pro- portional to negative time squared. ±rom these facts, we can obtain the correct answer. t x 0 t Q t R t S t P Question 2, chap 2, sect 4. part 1 of 5 10 points The following 5 questions refer to a toy car which can move to the right or left on a horizontal surface along a straight line (the + distance axis). The positive direction is to the right. Dif- ferent motions of the car are described be- low. Choose the acceleration-time graph which corresponds to the motion of the car described in each statement. car

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 6

HW3 - homework 03 PAPAGEORGE MATT Due 4:00 am Question 1...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online