'Torques' diaporamas de présentation

Chapter 8

Chapter 8. Rotational Equilibrium and Rotational Dynamics. Wrench Demo. Torque. Torque, t , is the tendency of a force to rotate an object about some axis F is the force d is the lever arm (or moment arm) Units are Newton-m. Direction of Torque. Torque is a vector quantity

485 views • 48 slides

Chapter 9: Equilibrium, Elasticity

Chapter 9: Equilibrium, Elasticity. This chapter: Special case of motion . That is NO MOTION ! Actually, no acceleration ! Everything we say would hold if the velocity is constant! STATICS ( Equilibrium ): Net (total) force = 0 AND net (total) torque = 0

431 views • 24 slides

338 views • 24 slides

CH12.Problems

CH12.Problems. JH.131. Take the lower center as rotation center then: M2 (L/4) = M3 (3L/4) ? M2= 3 M3 Now the upper center: M1 (L/4) = (M2+M3) (3 L/4) M1 = 3(M2+M3) = 3* 4 = 12kg Only Torques, no forces!. -Ta + Tc cos30 = 0 Tc Sin30 -240 = 0 Only forces no torques. Project!

256 views • 15 slides

Angular Momentum

1.14k views • 14 slides