At time t, r→ = 4.20t2 i^ − (2.30t + 4.20t2)j^ gives the position of a

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At time t, r→ = 4.20t2 i^ − (2.30t + 4.20t2)j^ gives the position of a 3.0 kg particle relative to the origin of an xy coordinate system ( r→ is in meters and t is in seconds). (a) Find the torque acting on the particle relative to the origin at the moment 6.41 s (b) Is the magnitude of the particle's angular momentum relative to the origin increasing, decreasing, or unchanging? (a) k^ Units (b)

At time t, r→ = 4.20t2 i^ − (2.30t + 4.20t2)j^ gives the position of a 3.0 kg particle relative to the origin of an xy coordinate system ( r→ is in meters and t is in seconds). (a) Find the torque acting on the particle relative to the origin at the moment 6.41 s (b) Is the magnitude of the particle's angular momentum relative to the origin increasing, decreasing, or unchanging? (a) k^ Units (b)

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At time

t, \vec{r} = 4.20 t^{2} \hat{i} - (2.30 t + 4.20 t^{2}) \hat{j}

gives the position of a

3.0 k g

particle relative to the origin of an

x y

coordinate system (

\vec{r}

is in meters and

t

is in seconds). (a) Find the torque acting on the particle relative to the origin at the moment

6.41 s

(b) Is the magnitude of the particle's angular momentum relative to the origin increasing, decreasing, or unchanging? (a) i

\hat{k}

Units

◻

(b)

◻

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