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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 , r → = 4.20 t 2 i ^ − ( 2.30 t + 4.20 t 2 ) j ^ gives the position of a 3.0 k g particle relative to the origin of an x y 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) i k ^ Units ◻ (b) ◻

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