Preview

Hgjftjfykyk

Satisfactory Essays
Open Document
Open Document
680 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Hgjftjfykyk
PROJECT IN PHYSICS
(Problems Compilation)

Submitted by:
KIMBERLY L. RECARE IV- HOPE
Submitted to:
CECIL SIERVO

PROBLEM SOLVING 1. To go from your house to a nearby store, you must walk 4 m east and then 20 m 30° north of east. What is your displacement? Use polygon method and parallelogram method. Check you result by sine law and cosine law.

COSINE LAW SINE LAW R²= a² + b² - 2 AB cos 150° = (4m) ² + (20m) ² - 2 (4m)(20m) cos 150° = 16m² + 400m² - 2 (80m²)(-0.87) = 416m² - 2 (-69.6m²) = 416m² - (-1392m²) R²= 555m² R= 23.56m or R=24m |

2. You found a treasure map and it said: Start at the well, go 100m straight south, then 30m 40° N of W, then 25 m straight east, and finally 45m 75° S of E. How far from the well and in what direction is the hidden treasure? Use component method. VECTOR | X-com (cos) | Y- com (sin) | 100 m S | 0 | -100m | 30M 40° NW | -30m cos 40°= -22.98 | 30m sin 40°=19.28 | 25m E | 25m | 0 | 45m 75°SE | 45m cos 75°= 11.65 | -45m sin 75°= -43.47 | ∑= x & y | 13.67 | -124.19 |

Dr = x² + y² = (13.67) ² + (-124.19) ² = 186.87 + 15, 423.16 = 15, 610.03
Dr = 124.94 or Dr = 125m | Tan Ɵ = = = tan ¹ (9.09) Ɵ = 83.72 or Ɵ = 84° |

3. A car starting from rest, accelerates for 15.0 min until it’s velocity is 20 m/s. It then moves at constant velocity for another 20.0 min before it slow down and finally stopped in another 10.0 min. Find (a) acceleration during the first 15 min, (b) the deceleration during the last 10 min of its motion, (c) the distance traveled during the last minute, and the (d) total displacement. (e) Draw the displacement versus time graph and velocity versus time graph for the motion of the car.
Given:

You May Also Find These Documents Helpful

  • Good Essays

    For questions 1 through 4, calculate the following distances using the fractional map scale. (Your instructor may ask you to show your work in the space provided.)…

    • 432 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Hgdhkdt

    • 256 Words
    • 2 Pages

    Place 10g of salt into the water and put second on top, creating a seal.…

    • 256 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Hjgk

    • 292 Words
    • 2 Pages

    • Inter-dependent decision-making: Inter-dependence means that firms must take into account the likely reactions of their rivals to any change in price, output or forms of non-price competition.…

    • 292 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Module 2 review

    • 526 Words
    • 2 Pages

    6. Julianna walks 10 meters East, 15 meters South and 20 meters North. What is her resultant displacement? (2.10-2.11)…

    • 526 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Math 221

    • 420 Words
    • 2 Pages

    Now we will plug in the value and solve: x paces north and 2x + 4 paces east or 10 paces north and 2(10) + 4 = 24 paces east of Leaning Rock. Or 2x + 6 paces northeast or 2(10) + 6 = 26 paces northeast from the rock to reach the buried treasure.…

    • 420 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Unit 1 Test Part 2

    • 512 Words
    • 2 Pages

    Answer the questions below. You may use a drawing compass, ruler, and calculator. When you are finished, submit this test to your teacher by the due date for full credit.…

    • 512 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Geography

    • 704 Words
    • 21 Pages

    Explore the interactive maps to answer the three questions in Part 1 of this assignment. If you need to review how to use a map's scale, please go to the Locating Places section of the Map Tutorial and read through page 3. Please remember to submit your responses for Part 1 and Part 2 to your instructor in the assessment area. 1. Using the scale on the interactive map, give the approximate distance in miles that the Pilgrims traveled in their journey from Plymouth, England, to Plymouth, Massachusetts. The distance between Plymouth, England, and Plymouth, Massachusetts in miles is about 3,349 miles. 2. Using the scale on the interactive map, give the approximate distance in miles that Lewis and Clark traveled from St. Louis to Ft. Clatsop near the Pacific Ocean. The approximate distance in miles that Lewis and Clark traveled from St. Louis to Ft. Clatsop near the Pacific Ocean is 1,400 miles. 3. Using the scale on the interactive map, give the approximate distance in miles that the transcontinental railroad covered from Omaha to San Francisco. The approximate distance in miles that the transcontinental railroad covered from Omaha to San Francisco is 1,430 miles. Part 2…

    • 704 Words
    • 21 Pages
    Good Essays
  • Good Essays

    Two ships P and Q are moving along straight lines with constant velocities. Initially P is at a point O and the position vector of Q relative to O is (6i + 12j) km, where i and j are unit vectors directed due east and due north respectively. The ship P is moving with velocity 10j km h–1 and Q is moving with velocity (−8i + 6j) km h−1. At time t hours the position vectors of P and Q relative to O are p km and q km respectively. (a) (b) (c) Find p and q in terms of t.…

    • 578 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Percent Error: Error could have resulted from the holes in the wall since they were made from brick. The…

    • 251 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Physics 101 Study Guide

    • 5360 Words
    • 22 Pages

    EXAMPLE 1: Consider the velocity vs. time graph below. The motion of five different people (A, B, C, D, and E) are shown on the graph. Study the graph and answer the following questions. Some questions may have more than or less than one answer.…

    • 5360 Words
    • 22 Pages
    Good Essays
  • Powerful Essays

    Algebraic Vectors

    • 808 Words
    • 4 Pages

    4. A boat is capable of 20 km/h in still water. You wish to cross the river to a point 0.6 km upstream from your present position. If the current is 8 km/h and the river is 1.5 km wide, at what angle to the bank should you steer the boat? How long will it take you to cross?…

    • 808 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Answers:ok redone it y-186=SQRTt((300-x)^2+75^2), y=(SQRT((x^2+75^2) co-ordinate moves so no negative numbers and is -110.279 or +110.279…

    • 413 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Coulomb's Law Lab

    • 677 Words
    • 3 Pages

    The sources of error could have been in measuring the angle o⁲敬杮桴漠⁦桴⁥瑳楲杮‮桔⁥瑳楲杮洠杩瑨栠癡⁥敢湥愠氠瑩汴⁥桳牯整r length of the string. The string might have been a little shorter or longer than measured. The angle could have varied based on the electrostatic they already had between them at the moment. The angle could have been slight smaller or larger than the measurement taken by the protractor.…

    • 677 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Vector Notation

    • 109 Words
    • 2 Pages

    Convert the following vectors to direction/magnitude form, giving the direction as a bearing; (2 marks each)…

    • 109 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    the signalman

    • 512 Words
    • 3 Pages

    2. In the before picture draw a fault line and arrows to show the direction of movement…

    • 512 Words
    • 3 Pages
    Satisfactory Essays