Homework Statement
Four charges are arranged on the corners of a square whose edge length is a. Two positive charges +Q are placed on diagonally opposite corners, and two negative charges -Q are placed on the other corners. (a) What is the force on a test charge qo placed at the center of the...
Haha I got the answer. It goes back to thinking Kinematics equations where vf=vi+at
therefore, to get the acceleration you use Newton's second law: F=ma where F= 20000N and m = .2 to get a = 100,000
vf = vi + at
vf= 26 - (100,000)(.001)
vf = -74 m/s
vf is 74 m/s in the opposite direction it...
Homework Statement
A 8.5 kg steel ball, traveling left to right at 12 m/s, undergoes an elastic collision with a 5 kg steel ball at rest. To the nearest Joule, what is the Total Kinetic Energy of the two balls after collision? If the first ball has a mass of 10 kg and the second ball is...
Homework Statement
A ball with a mass of .2 kg traveling at a speed of 26 m/s is struck by a bat. If the duration of the impulse is .001 seconds and the speed of the ball afterwards is the same as before, what is the average force (to the nearest Newton) of the impact? On the other hand, if...