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23 Nov 2019
First question: A handball of mass .10 kg, travels horizontally at25.0 m/s, strikes a wall and rebounds at 19.0 m/s. What is thechange in the momentum of the ball?
Answer is: 4.4 N (s)
Second questions: A bullet of mass 20 g, traveling at 350 m/s,strikes a steel plate at an angle of 30 degrees with the plane ofthe plate. It ricochets off at the same angle, at a speed of 320m/s. What is the magnitude of the impulse that the wall gives tothe bullet?
Answer: 6.7 N(s)
Third question:
James moves in a circular path (radius 15 m) with a speed of 60m/s. The angular velocity is? Please include the formula you use tofind this answer.
Answer is: 120/pi rpm
First question: A handball of mass .10 kg, travels horizontally at25.0 m/s, strikes a wall and rebounds at 19.0 m/s. What is thechange in the momentum of the ball?
Answer is: 4.4 N (s)
Second questions: A bullet of mass 20 g, traveling at 350 m/s,strikes a steel plate at an angle of 30 degrees with the plane ofthe plate. It ricochets off at the same angle, at a speed of 320m/s. What is the magnitude of the impulse that the wall gives tothe bullet?
Answer: 6.7 N(s)
Third question:
James moves in a circular path (radius 15 m) with a speed of 60m/s. The angular velocity is? Please include the formula you use tofind this answer.
Answer is: 120/pi rpm
Collen VonLv2
26 Sep 2019
