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3. i) What do you mean by angular momentum ii) The angular momenta of a particle in four situations are (a) L = 2t+5 ; (b) L = -3t²+1 ; (c) L = 5; (d) –t/7. In which situation is the net torque on the particle (a) zero, (b) positive and constant, (c) negative and increasing in magnitude (t , 0), and (d) negative and decreasing in magnitude (t , 0)? (Please explain your answer). iii) At time t = 0, a 4.0 kg particle with velocity v = -7i + 9j is at x = 5.0 m, y = -9.0 m. It is pulled by a 7.0 N force in the negative x direction.About the origin, what are (a) the particle's angular momentum, (b) the torque acting on the particle,and (c) the rate at which the angular momentum is changing?

3. i) What do you mean by angular momentum ii) The angular momenta of a particle in four situations are (a) L = 2t+5 ; (b) L = -3t²+1 ; (c) L = 5; (d) –t/7. In which situation is the net torque on the particle (a) zero, (b) positive and constant, (c) negative and increasing in magnitude (t , 0), and (d) negative and decreasing in magnitude (t , 0)? (Please explain your answer). iii) At time t = 0, a 4.0 kg particle with velocity v = -7i + 9j is at x = 5.0 m, y = -9.0 m. It is pulled by a 7.0 N force in the negative x direction.About the origin, what are (a) the particle's angular momentum, (b) the torque acting on the particle,and (c) the rate at which the angular momentum is changing?

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3. i) What do you mean by angular momentum ii) The angular momenta of a particle in four situations are (a) L = 2t+5 ; (b) L = -3t²+1 ; (c) L = 5; (d) –t/7. In which situation is the net torque on the particle (a) zero, (b) positive and constant, (c) negative and increasing in magnitude (t , 0), and (d) negative and decreasing in magnitude (t, 0)? (Please explain your answer). iii) At time t = 0, a 4.0 kg particle with velocity v = It is pulled by a 7.0 N force in the negative x direction.About the origin, what are (a) the particle's angular momentum, (b) the torque acting on the particle,and (c) the rate at which the angular momentum is changing? -7i + 9j is at x = 5.0 m, y = = -9.0 m.
Transcribed Image Text:3. i) What do you mean by angular momentum ii) The angular momenta of a particle in four situations are (a) L = 2t+5 ; (b) L = -3t²+1 ; (c) L = 5; (d) –t/7. In which situation is the net torque on the particle (a) zero, (b) positive and constant, (c) negative and increasing in magnitude (t , 0), and (d) negative and decreasing in magnitude (t, 0)? (Please explain your answer). iii) At time t = 0, a 4.0 kg particle with velocity v = It is pulled by a 7.0 N force in the negative x direction.About the origin, what are (a) the particle's angular momentum, (b) the torque acting on the particle,and (c) the rate at which the angular momentum is changing? -7i + 9j is at x = 5.0 m, y = = -9.0 m.
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