An object of mass M is sliding along a horizontal frictionless surface in the +x direction with speed v0 when it explodes into two pieces. The pieces remain in contact with the frictionless surface. After the explosion, one piece with a mass m1 = 5.30 kg moves at a speed of v1f = 6.20 m/s at an angle of 10.5° counterclockwise from the positive y axis. The second piece, which has a mass of m2, moves at a speed of v2f = 4.40 m/s at an angle of 29.0° clockwise from the positive x axis. (a) Calculate the mass of the second piece, m2. (b) Calculate the speed of the object before the explosion.
