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 Straight Line question

2021 · 24 Feb · Shift 1 · Q57
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. /JEE Main
  3. /Physics
  4. /Motion in A Straight Line
  5. /2021 · 24 Feb · Shift 1 · Q57

Motion in A Straight Line question

2021 · 24 Feb · Shift 1 · Q57

JEE MainPhysicsMotion in A Straight LineMCQ+4 / −1
If the velocity-time graph has the shape AMB, what would be the shape of the corresponding acceleration-time graph? JEE Main 2021 (Online) 24th February Morning Shift Physics - Motion in a Straight Line Question 79 English
  1. A
    JEE Main 2021 (Online) 24th February Morning Shift Physics - Motion in a Straight Line Question 79 English Option 1
  2. B
    JEE Main 2021 (Online) 24th February Morning Shift Physics - Motion in a Straight Line Question 79 English Option 2
  3. C
    JEE Main 2021 (Online) 24th February Morning Shift Physics - Motion in a Straight Line Question 79 English Option 3
  4. D
    JEE Main 2021 (Online) 24th February Morning Shift Physics - Motion in a Straight Line Question 79 English Option 4
View written solutionFree

Correct answer: C

  1. The acceleration-time graph is obtained from the slope of the velocity-time graph.

  2. In a velocity-time graph of shape AMB, the graph consists of two straight-line segments:

    • From AAA to MMM: velocity increases linearly with time, so the slope is positive constant.
    • From MMM to BBB: velocity decreases linearly with time, so the slope is negative constant.

  3. Therefore, the acceleration-time graph must have:

    • a horizontal line above the time axis first (constant positive acceleration),
    • then a horizontal line below the time axis (constant negative acceleration).

  4. Among the given options, this corresponds to Option C.

Hence, the correct answer is: C\boxed{C}C​

PreviousNext

More from Motion in A Straight Line

  • An engine of a train, moving with uniform acceleration, passes the signal-post with velocity u and the last compartment with velocity v. The velocity with which middle point of the train passes the signal post is :2021 · MCQ
  • A stone is dropped from the top of a building. When it crosses a point 5 m below the top, another stone starts to fall from a point 25 m below the top. Both stones reach the bottom of building simultaneously. The height of the building is :2021 · MCQ
  • Water droplets are coming from an open tap at a particular rate. The spacing between a droplet observed at 4th second after its fall to the next droplet is 34.3 m. At what rate the droplets are coming from the tap ? (Take g = 9.8 m/s2)2021 · MCQ
  • The relation between time t and distance x for a moving body is given as t = mx2 + nx, where m and n are constants. The retardation of the motion is : (When v stands for velocity)2021 · MCQ
  • A balloon was moving upwards with a uniform velocity of 10 m/s. An object of finite mass is dropped from the balloon when it was at a height of 75 m from the ground level. The height of the balloon from the ground when object strikes the…2021 · MCQ
  • The instantaneous velocity of a particle moving in a straight line is given as V=αt+βt2, where α and β are constants. The distance travelled by the particle between 1s and 2s is :2021 · MCQ
  • Two spherical balls having equal masses with radius of 5 cm each are thrown upwards along the same vertical direction at an interval of 3s with the same initial velocity of 35 m/s, then these balls collide at a height of ............... m.…2021 · Numerical
  • A scooter accelerates from rest for time t1 at constant rate a1 and then retards at constant rate a2 for time t2 and comes to rest. The correct value of t2​t1​​ wil be :2021 · MCQ