At one particular instant of time, two small masses are located in the x-y horiz

Question

At one particular instant of time, two small masses are located in the x-y horizontal plane. Their respective masses in the coordinate plane are:

1.0 kg at (-0.4 m, +0.2 m) 2.0 kg at (0,-0.1 m)

(a) find the center of mass coordinates for the system of the two masses.

Xcom=? Ycom= ?


(b) if the 1 kg mas is set into motion at a speed 2.0 m/s toward the right and the 2 kg mass is set into motion with a speed 0.5 m/s parallel to the y-axis, determine the velocity of the center of mass of the system of the 2 masses?

Vcom=? Direction=?

(c) where will the masses collide? Xc=? Yc=?

(d) if the collision is totally inelastic, what fraction of the energy will be lost in the collision? (Delta K)/K =?

(e) If the collision is totally elastic and the 1 kg body travels parallel to the y axis after the collision, what will be the velocities of the bodies after the collision?

Vx 1kg=? Vy 1kg=?

Explanation / Answer

Xcom = -0.133333 Xcom = (m1x1 + m2x2)/m1 + m2

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