A block of mass m = 4.7 kg, moving on a frictionless surface with a speed vi = 9.9 m/s, makes a sudden perfectly elastic collision with a stationary block of mass M. Just after the collision, the 4.7-kg block recoils with a speed of vf = 1.8 m/s. (a) Find the momentum of mass M after the collision. (b) Find the kinetic energy of mass M after the collision. (c) What is the magnitude and direction of the impulse that mass m receives from mass M? (d) If the collision lasts for 0.050 seconds, what is the magnitude of the average force that mass m experiences during the collision?

A block of mass m = 4.7 kg, moving on a frictionless surface with a speed vi = 9.9 m/s, makes a sudden perfectly elastic collision with a stationary block of mass M. Just after the collision, the 4.7-kg block recoils with a speed of vf = 1.8 m/s. (a) Find the momentum of mass M after the collision. (b) Find the kinetic energy of mass M after the collision. (c) What is the magnitude and direction of the impulse that mass m receives from mass M? (d) If the collision lasts for 0.050 seconds, what is the magnitude of the average force that mass m experiences during the collision?

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