O-LevelPhysicsKinematics5054/12 · Oct/Nov 2015 · Q61 Mark

At time t₁, a stone is dropped from a stationary balloon. The stone reaches terminal velocity at time t₂. Which row gives the acceleration of the stone at time t₁ and at time t₂?

Aacceleration at t₁ 0 m/s², acceleration at t₂ 0 m/s²

Bacceleration at t₁ 10 m/s², acceleration at t₂ 0 m/s²

Cacceleration at t₁ 0 m/s², acceleration at t₂ 10 m/s²

Dacceleration at t₁ 10 m/s², acceleration at t₂ 10 m/s²

✓ Correct answer

B: acceleration at t₁ 10 m/s², acceleration at t₂ 0 m/s²

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Topic: Kinematics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2015 Paper 1 Variant 2, question 6.

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