Kinematics Part-1 (one dimension) questions with solutions

Showing 1–10 of 128 questions

• MCQmediumKinematics Part-1 (one dimension)Ghraphical problem of kinematics

  Four curves A, B, C and D are shown in the original figure as possible representations of one-dimensional motion. Which set of curves is physically possible?

  

  Options

  • Option A

    A, B and C only

  • Option B

    A, B and D only

  • Option C

    A and B only

  • Option D

    A, C and D only

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• MCQmediumKinematics Part-1 (one dimension)Motion under constant acceleration

  A paratrooper jumps from an aeroplane and opens a parachute after 2 s of free fall and starts deaccelerating with 3 m/s². At 10 m height from ground, while descending with the help of parachute, the speed of paratrooper is 5 m/s. The initial height of the aeroplane is _____m.

  (g = 10 m/s²)

  Options

  • Option A

    62.5

  • Option B

    92.5

  • Option C

    20

  • Option D

    82.5

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• IntegerdifficultKinematics Part-1 (one dimension)Instantaneous speed and instantaneous velocity

  The displacement and the increase in the velocity of a moving particle in the time interval t to (t+1)s are 125 m and & 50 m/s respectively. The distance travelled by the particle in $(t+2)^{th}$s is ________m.

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• MCQdifficultKinematics Part-1 (one dimension)Motion under constant acceleration

  A particle starts from rest with constant acceleration. Its displacement during the 5th second is how many times its displacement during the 3rd second?

  Options

  • Option A

    5/3

  • Option B

    7/5

  • Option C

    9/5

  • Option D

    11/7

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• Multi-correctdifficultKinematics Part-1 (one dimension)Motion under gravity

  For a ball thrown vertically upward from the ground with speed u, neglecting air resistance, which statements are correct?

  Select all that apply

  • Option A

    Time to reach maximum height is u/g.

  • Option B

    Maximum height is u²/(2g).

  • Option C

    Speed at a given height is the same during ascent and descent.

  • Option D

    Acceleration becomes zero at the highest point.

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• A/ReasyKinematics Part-1 (one dimension)Motion under constant acceleration

  Evaluate the following Assertion (A) and Reason (R) and choose the correct option.

  Assertion

  Assertion (A): A ball projected vertically upward with speed u returns to the point of projection with the same speed u, neglecting air resistance.

  Reason

  Reason (R): Using v² = u² + 2aΔy, when the ball returns to the original level, Δy = 0, so v² = u².

  Options

  • Option A

    Both A and R are true and R is the correct explanation of A.

  • Option B

    Both A and R are true but R is NOT the correct explanation of A.

  • Option C

    A is true but R is false.

  • Option D

    A is false but R is true.

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• MCQmediumKinematics Part-1 (one dimension)Acceleration and Avg acceleration

  A body starts moving from rest with constant acceleration covers displacement S₁ in first (p - 1) seconds and S₂ in first p seconds. The displacement S₁ + S₂ will be made in time :

  Options

  • Option A

    (2p + 1) s

  • Option B

    √(2p² - 2p + 1) s

  • Option C

    (2p - 1) s

  • Option D

    (2p² - 2p + 1) s

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• MCQeasyKinematics Part-1 (one dimension)Instantaneous speed and instantaneous velocity

  The distance travelled by a particle is related to time t as x = 4t². The velocity of the particle at t = 5s is :

  Options

  • Option A

    40 m s⁻¹

  • Option B

    25 m s⁻¹

  • Option C

    20 m s⁻¹

  • Option D

    8 m s⁻¹

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• MCQeasyKinematics Part-1 (one dimension)Motion under gravity

  A balloon rises vertically upward with constant speed 10 m·s⁻¹. When it reaches a height of 75 m, a stone is released from it. The balloon continues upward at the same speed. Taking g = 10 m·s⁻², what is the height of the balloon above the ground when the stone hits the ground?

  Options

  • Option A

    85 m

  • Option B

    150 m

  • Option C

    129 m

  • Option D

    125 m

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• Multi-correctdifficultKinematics Part-1 (one dimension)Motion under gravity

  A body is dropped from rest from height H and takes total time T to reach the ground. Which statements are correct?

  Select all that apply

  • Option A

    H = (1/2)gT².

  • Option B

    Distance in the last second is (g/2)(2T - 1).

  • Option C

    Distance covered in successive one-second intervals is proportional to odd integers.

  • Option D

    Average speed over the complete fall is gT.

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