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A projectile is launched with a momentum of 356 kg m/s and a kinetic energy of 5,417 J. What is the mass of the projectile in kilograms? Please round your answer to the nearest whole number (integer).A 1,920-kg car is traveling at 30 m/s. How fast must a 551-kg dragster be traveling to have the same momentum as the car? Please round your answer to the nearest whole number (integer).A stationary 6-kg shell explodes into three pieces. One 4.0 kg piece moves horizontally along the negative x-axis. The other two fragments, each 1.0 kg, move in directions that make 60 angle above and below the positive x-axis and their speeds are v1 = 86 m/s each. What is the magnitude of the velocity (speed) of the 4.0-kg fragment, v2? Please round your answer to the nearest whole number (integer)