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An object is thrown vertically upwards. At its maximum height, which of the following quantity becomes zero?

Asked in JEE Main 26th June 1st Shift 2022 · Energy conservation on tracks and inclines

• (1) Momentum
• (2) Potential energy
• (3) Acceleration
• (4) Force

Step-by-step solution

Why the other options are wrong

• (2) Comes from confusing the top with the reference level; potential energy is greatest there.
• (3) Comes from thinking zero velocity means zero acceleration; gravity acts throughout.
• (4) Comes from thinking the object is force-free when it stops; its weight never switches off.

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