A ball has a mass of 140 g. What is the force needed to accelerate the ball at 25 m/s2? (Formula: F=ma)

Use F = ma, first converting the mass to kilograms: 140 g = 0.140 kg. Then F = 0.140 × 25 = 3.5 N, so the force needed is 3.5 N, choice A.

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