A karate student tries not to follow through in order to break a board, as shown in Fig. 6.27. How can the abrupt stop of the hand (with no follow- through) generate so much force?
Answer to relevant QuestionsExplain the difference for each of the following pairs of actions in terms of impulse: (a) A golfer’s long drive and a short chip shot; (b) A boxer’s jab and a knockout punch; (c) A baseball player’s bunting action ...Two runners of mass 70 kg and 60 kg, respectively, have a total linear momentum of 350 kg ∙ m/s. The heavier runner is running at 2.0 m/s. Determine the possible velocities of the lighter runner. At a basketball game, a 120-lb cheerleader is tossed vertically upward with a speed of 4.50 m/s by a male s cheerleader. (a) What is the cheerleader’s change in momentum from the time she is released to just before being ...A car with a mass of 1500 kg is rolling on a level road at 30.0 m/s. It receives an impulse with a magnitude of 2000 N ∙ s and its speed is reduced as much as possible by an impulse of this size. (a) Was this impulse ...At a shooting competition, a contestant fires and a 12.0-g bullet leaves the rifle with a muzzle speed of 130 m/s. The bullet hits the thick target backing and stops after traveling 4.00 cm. Assuming a uniform acceleration, ...
Post your question