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Saturday, 31 October

JEE Main 2017 · PhysicsMultiple choiceSingle correctEasyData or graph

JEE Main 2 April 2017 (offline), Physics Q2

Question 2 of 90 in this shift, Physics question 2 of 30.

A body is thrown vertically upwards. Which one of the following graphs correctly represent the velocity vs time ?

The figure, in words

Four v-t graphs as options (v on vertical axis, t on horizontal axis, arrowheads indicating direction of traversal).
  1. (1)[figure: v vs t graph, straight line from origin rising to a peak then falling linearly to the t-axis, arrows along the line]
  2. (2)[figure: v vs t graph, line starting positive above the t-axis falling to zero and continuing as a mirrored line to negative v, with arrows]
  3. (3)[figure: v vs t graph, single straight line starting at positive v on the v-axis and decreasing through the t-axis to negative v]Official answer
  4. (4)[figure: v vs t graph, V-shaped: v decreases linearly to zero then increases, touching the t-axis]

Official answer

Option 3

CBSE answer key (25/04/2017, used for result).

Chapter
Motion in a Straight Line
Topic
Kinematics in 1D
Idea tested
Free Fall Sign Conventions

Same idea in other shifts

Asked 10× in all
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  2. 12 Apr 2023, Shift 1 · Q44A ball is thrown vertically upward with an initial velocity of 150 m/s. The ratio of velocity after 3 s and 5 s is x+1x\frac{x+1}{x}. The…EasySingle correct
  3. 28 Jul 2022, Shift 2 · Q21A ball is thrown vertically upwards with a velocity of 19.6 ms−119.6\ \mathrm{ms^{-1}} from the top of a tower. The ball strikes the ground after…MediumNumerical value
  4. 24 Jun 2022, Shift 1 · Q57From the top of a tower, a ball is thrown vertically upward which reaches the ground in 6 s. A second ball thrown vertically downward from…MediumNumerical value
  5. 26 Jun 2022, Shift 1 · Q33An object is thrown vertically upwards. At its maximum height, which of the following quantity becomes zero ?EasySingle correct
  6. 26 Jun 2022, Shift 1 · Q52A ball of mass 0.5 kg is dropped from the height of 10 m. The height, at which the magnitude of velocity becomes equal to the magnitude of…EasyNumerical value
  7. 27 Jun 2022, Shift 2 · Q33When a ball is dropped into a lake from a height 4.9 m above the water level, it hits the water with a velocity vv and then sinks to the…EasySingle correct
  8. 8 Jan 2020, Shift 2 · Q21A ball is dropped from the top of a 100 m100\ \mathrm{m} high tower on a planet. In the last 12\frac{1}{2} s before hitting the ground, it…MediumNumerical value

Question text from the official JEE Main paper published by NTA (CBSE ran the 2017 exam); answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.