An object with mass 500 g moves along x-axis with speed v = 4√(x) m/s. The force acting on the object is: (a) 8 N (b) 4 N (c) 5 N (d) 6 N

Answer: (b). a = vdv/dx = 4√(x) × 2/√(x) = 8 m/s² F = ma = 0.5 × 8 = 4 N So the answer is (b) 4 N.

An object with mass 500 g moves along x-axis with speed v = 4√(x)… | JEE Main 2025 (7 Apr, Shift 2)

Q7JEE Main 2025 · 7 APR · SHIFT 2Medium

Inertia, First & Second Laws

An object with mass 500 g moves along x-axis with speed $v = 4\sqrt{x}$ m/s. The force acting on the object is:

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Answer: (b)

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