In the overhead View of the gure, a 220 g ball with a speed v of 8.1 m/s strikes a wall at an angle 8 of 25 and then rebounds with the same speed and angle. It is in contact with the wall for 12 ms. In unit-vector notation,what are (a) the impulse on the ball from the wall and (b) the average force on the wall from the ball? (x; L, 9/ m (a) Number n i+ n j Units v (b) Number i+ n j Units V A space vehicle is traveling at 4590 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The relative speed between the motor and the command module is then 76 km/h. The mass of the motor is four times the mass of the module. What is the speed of the command module relative to Earth just after the separation? Number UnitsIn the figure here, a stationary block explodes into two pieces L and R that slide across a frictionless floor and then into regions with friction, where they stop. Piece L, with a mass of 2.5 kg, encounters a coefficient of kinetic friction ML = 0.43 and slides to a stop in distance dL = 0.50 m. Piece R encounters a coefficient of kinetic friction MR = 0.43 and slides to a stop in distance dR = 0.45 m. What was the mass of the block? -L =0 -UR dR Number i Unit