A particle of mass m is driven by a machine that delivers a ... — Physics | Mockzy

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A particle of mass m is driven by a machine that delivers a constant power k watt. If the particle starts from rest the force on the particle at time t is:

√(mk)t⁻¹ᐟ²

√(2mkt)t⁻¹ᐟ²

(1/2)√(mkt)t⁻¹ᐟ²

√(mk/2)t⁻¹ᐟ²

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