001 10.0 points A 5 kg steel ball strikes a wall with a speed of 4.26 this at an angle of 37.30 with the normal to the wall. it bounces off with the same speed and angle. as shown. If the ball is in contact with the wall for 0.191 s what is the magnitude of the average force exerted on the ball by the wall"? Answer in units of N. 002 (part. 1 01'2) 10.0 points An attack helicopter is equipped with a 20 mm cannon that tires 62.? g shells in the forward direction with a muzzle speed of 362 m/s. The fully loaded helicopter has a mass of 23m kg. A lnlrst of 195 shells is led in a 3.77 s interval. What is the resulting average force on the helicopter? Answer in units of N. 003 (part. 2 OH!) 10.0 points By what amount is its forward speed reduced"? Answer in units of ni/s. 004 10.0 points A(n) 19.5 g bullet is shot into a(n) 6424 g wooden block standing on a frictionless sur- face. The block, with the bullet in it, acquires a speed of 1.66 m/s. Calculate the speed of the bullet before striking the block.005 (part 1 of 2) 10.0 points A(n) 0.164 kg baseball is thrown with a speed of 13.5 m/s. It is hit straight back at the pitcher with a final speed of 13.2 m/s. What is the magnitude of the impulse de- livered to the ball? Answer in units of kg . m/s. 006 (part 2 of 2) 10.0 points Find the average force exerted by the bat on the ball if the two are in contact for 0.00156 s. Answer in units of N