Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Motion in A Plane question

2014 · Q141
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Physics
  4. /Motion in A Plane
  5. /2014 · Q141

Motion in A Plane question

2014 · Q141

NEETPhysicsMotion in A PlaneMCQ+4 / −1
A particle is moving such that is position coordinates (x, y) are (2 m, 3 m) at time t = 0, (6 m, 7 m)
at time t = 2 s and (13 m, 14 m) at time t = 5 s.

Average velocity vector (v→av)\left( {{{\overrightarrow v }_{av}}} \right)(vav​) from t = 0 to t = 5 s is
  1. A
    15(13i^+14j^){1 \over 5}\left( {13\widehat i + 14\widehat j} \right)51​(13i+14j​)
  2. B
    73(i^+j^){7 \over 3}\left( {\widehat i + \widehat j} \right)37​(i+j​)
  3. C
    2(i^+j^)2\left( {\widehat i + \widehat j} \right)2(i+j​)
  4. D
    115(i^+j^){11 \over 5}\left( {\widehat i + \widehat j} \right)511​(i+j​)
View written solutionFree

Correct answer: D

vav→=Δr→ (displacement)Δt (time taken)\overrightarrow {{v_{av}}} = {{\Delta \overrightarrow r \,(displacement)} \over {\Delta t\,(time\,taken)}}vav​​=Δt(timetaken)Δr(displacement)​

=(13−2)i^+(14−3)j^5−0=115(i+j) = {{\left( {13 - 2} \right)\widehat i + \left( {14 - 3} \right)\widehat j} \over {5 - 0}} = {{11} \over 5}\left( {i + j} \right)=5−0(13−2)i+(14−3)j​​=511​(i+j)

PreviousNext

More from Motion in A Plane

  • Vectors A,B and C are such that A.B=0 and A.C=0. Then the vector parallel to A is2013 · MCQ
  • The velocity of a projectile at the initial point A is (2i+3j​) m/s. It's velocity (in m/s) at point B is Includes diagram2013 · MCQ
  • The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is2012 · MCQ
  • A particle has initial velocity (2i+3j​) and acceleration (0.3i+0.2j​). The magnitude of velocity after 10 seconds will be2012 · MCQ
  • A projectile is fired at an angle of 45o with the horizontal. Elevation angle of the projectile at its highest point as seen from the point of projection, is2011 · MCQ
  • A particle moves in a circle of radius 5 cm with constant speed and time period 0.2π s. The acceleration of the particle is2011 · MCQ
  • A missile is fired for maximum range with an initial velocity of 20 m/s. If g = 10 m/s2, the range of the missile is2011 · MCQ
  • 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 is2011 · MCQ