A particle of mass moves in a straight line such that its speed at time seconds is

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

A particle of mass

2\,\text{kg}

moves in a straight line such that its speed at time

t

seconds is

v = 3 t^{2}\,\text{m s}^{-1}

. What is the magnitude of the force acting on the particle at

t = 2\,\text{s}

? (a)

48\,\text{N}

(b)

24\,\text{N}

(c)

12\,\text{N}

(d)

36\,\text{N}

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