Q. A cart of mass 6.8 kg is moving with a velocity of 15.2 m/s. It makes a head-on perfectly inelastic collision with a stationary cart B with mass 6.4 kg causing them to travel with a velocity 7.63 m/s. What is the velocity of cart B?
Q. Calculate the net torque about this axis due to the three forces shown in the figure if the magnitudes of the forces are F_1 = 18.0 {rm N} , F_2 = 16.1 {rm N}, and F_3 = 15.2 {rm N} . The plate and all forces are in the plane of the page. Take positive torques to be counterclockwise.