Two cannons of mass 100 kg are placed on a uniform disc of radius 4.0 m and mass 400 kg. one cannon is located at the edge of the disc and the other cannon is placed on the opposite side of the disc half way between the center of the disc and the edge. the two cannons fire simultaneously in the same direction (toward the left). the cannonballs each have a mass of 2.0 kg and are moving at 250 m/s.
a. what is the angular velocity of the disc after the cannons are fired? is it rotating clockwise or counterclockwise?
b. suppose we could stop the rotation of the disc by firing a third cannonball. which cannon must fire and how fast must the cannonball be moving?
Answers: 2
Another question on Physics
Physics, 22.06.2019 13:00
At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.
Answers: 3
Physics, 22.06.2019 15:20
Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change
Answers: 3
Physics, 22.06.2019 16:20
Iupil u5l aluve time remaining 01: 53: 45 ei and both agreed that childhood experiences play an important role in the development of oneself a sigmund freud alfred adler b. carl jung alfred adler c.carl jung erik erikson d. sigmund freud.. carl jung select the best answer from the choices provided save and exit next submit mark this and return
Answers: 1
You know the right answer?
Two cannons of mass 100 kg are placed on a uniform disc of radius 4.0 m and mass 400 kg. one cannon...
Questions
Social Studies, 16.01.2020 02:31
Social Studies, 16.01.2020 02:31
English, 16.01.2020 02:31
Mathematics, 16.01.2020 02:31
Mathematics, 16.01.2020 02:31
