JEE Questions for Physics Vectors Quiz 9 - MCQExams.com

A particle has displacement of 12 m towards east and 5 m towards north then 6 m vertically upward. The sum of these displacement is
  • 12 m
  • 10.04 m
  • 14.31 m
  • None of these

Physics-Vectors-95099.png
  • 192
  • 8
  • 8√3
  • 3√8
Three concurrent forces of the same magnitude are in equilibrium. What is the angle between the force ? Also name the triangle formed by the forces as sides
  • 60° equilateral triangle
  • 120° equilateral triangle
  • 120°, 30°, 30° an isosceles triangle
  • 120° an obtuse angled triangle
For the figure
Physics-Vectors-94950.png

  • Physics-Vectors-94951.png
  • 2)
    Physics-Vectors-94952.png

  • Physics-Vectors-94953.png

  • Physics-Vectors-94954.png

Physics-Vectors-94955.png

  • Physics-Vectors-94956.png
  • 2)
    Physics-Vectors-94957.png

  • Physics-Vectors-94958.png

  • Physics-Vectors-94959.png
Following sets of three forces act on a body. Whoseresultant cannot be zero
  • 10, 10, 10
  • 10, 10, 20
  • 10, 20, 23
  • 10, 20, 40
Two forces 3 N and 2 N are at an angle θ such that the resultant is R. The first force is now increased to 6 N and the resultant become 2R. The value of θ is
  • 30°
  • 60°
  • 90°
  • 120°
The sum of two forces acting at a point is 16 N. If the resultant force is 8 N and its direction is perpendicular to smaller force then the forces are
  • 6 N and 10 N
  • 8 N and 7 N
  • 4 N and 12 N
  • 2 N and 14 N
Which pair of the following forces will never give (c) 2 N and 2 N (c) 1 N and 3 Nresultant force of 2 N
  • 2 N and 2 N
  • 1N and 1 N
  • 1 N and 3 N
  • N and 4 N
The resultant of two vectors A and B is perpendicular to the vector A and its magnitude is equal to half the magnitude of vector B. The angle between A and B is
  • 120°
  • 150°
  • 135°
  • None of these

Physics-Vectors-94965.png
  • Zero
  • tan–1(P/Q)
  • tan–1(Q / P)
  • tan–1(P / Q)(P + Q)

Physics-Vectors-94967.png

  • Physics-Vectors-94968.png
  • 2)
    Physics-Vectors-94969.png

  • Physics-Vectors-94970.png

  • Physics-Vectors-94971.png
A scooter going due east at 10 ms–1 turns right through an angle of 90°. If the speed of the scooter remains turn, the change in the velocity of unchanged in taking turn, the change in the velocity of the scooter is
  • 20.0 ms–1 south eastern direction
  • Zero
  • 10.0 ms–1 in southern direction
  • 14.14 ms–1 in south-west direction

Physics-Vectors-94974.png
  • P
  • (P + Q)
  • Q
  • (P – Q)
Two forces, F1 and F2are acting on a body. One force is double that of the other force and the resultant is equal to the greater force. Then the angle between the two forces is
  • cos–1(1 / 2)
  • cos–1 (–1 / 2)
  • cos–1 (–1 / 4)
  • cos–1 (1 / 4)

Physics-Vectors-94977.png

  • Physics-Vectors-94978.png
  • 2)
    Physics-Vectors-94979.png

  • Physics-Vectors-94980.png

  • Physics-Vectors-94981.png

Physics-Vectors-94983.png

  • Physics-Vectors-94984.png
  • 2)
    Physics-Vectors-94985.png

  • Physics-Vectors-94986.png

  • Physics-Vectors-94987.png
A body moves due East with velocity 20 km/hour and then due North with velocity 15 km/hour. The resultant velocity
  • 5 km/hour
  • 15 km/hour
  • 20 km/hour
  • 25 km/hour

Physics-Vectors-94990.png

  • Physics-Vectors-94991.png
  • 2)
    Physics-Vectors-94992.png

  • Physics-Vectors-94993.png

  • Physics-Vectors-94994.png
While travelling from one station to another, a car travels 75 km North, 60 km North–east and 20 km East. The minimum distance between the two stations is
  • 72 km
  • 112 km
  • 132 km
  • 155 km

Physics-Vectors-94997.png

  • Physics-Vectors-94998.png
  • 2)
    Physics-Vectors-94999.png

  • Physics-Vectors-95000.png

  • Physics-Vectors-95001.png
A body is moving with velocity 30 m/s towards east, After 10 seconds its velocity becomes 40 m/s towards north. The average acceleration of the body is
  • 5 m/s2
  • 1 m/s2
  • 7 m/s2

  • Physics-Vectors-95003.png

Physics-Vectors-95006.png
  • –1
  • 1/2
  • –1/2
  • 1

Physics-Vectors-95008.png

  • Physics-Vectors-95009.png
  • 2)
    Physics-Vectors-95010.png

  • Physics-Vectors-95011.png

  • Physics-Vectors-95012.png

Physics-Vectors-95014.png

  • Physics-Vectors-95015.png
  • 2)
    Physics-Vectors-95016.png

  • Physics-Vectors-95017.png
  • 90°

Physics-Vectors-95019.png
  • 1
  • 2
  • 3
  • None of these

Physics-Vectors-95021.png
  • A2B
  • Zero
  • A2B sin θ
  • A2B cos θ

Physics-Vectors-95023.png

  • Physics-Vectors-95024.png
  • 2)
    Physics-Vectors-95025.png

  • Physics-Vectors-95026.png

  • Physics-Vectors-95027.png

Physics-Vectors-95029.png
  • 20
  • 23
  • 5√33
  • 26

Physics-Vectors-95031.png

  • Physics-Vectors-95032.png
  • 2)
    Physics-Vectors-95033.png

  • Physics-Vectors-95034.png

  • Physics-Vectors-95035.png
0:0:1


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