The figure shows a two-ended “rocket” that is initially stationary on a frictionless floor, with its center at the origin of an x axis. The rocket consists of a central block C (of mass M = 5.10 kg) and blocks L and R (each of mass m = 1.30 kg) on the left and right sides. Small explosions can shoot either of the side blocks away from block C and along the x axis. Here is the sequence: (1) At time t = 0, block L is shot to the left with a speed of 3.10 m/s relative to the velocity that the explosion gives the rest of the rocket. (2) Next, at time t = 0.60 s, block R is shot to the right with a speed of 3.10 m/s relative to the velocity that block C then has (after the second explosion). At t = 3.20 s, what are (a) the velocity of block C (including sign) and (b) the position of its center?
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(Mechanic Physics)
The figure shows a two-ended “rocket” that is initially stationary on a frictionless floor, with its center at the origin of an x axis. The rocket consists of a central block C (of mass M = 5.10 kg) and blocks L and R (each of mass m = 1.30 kg) on the left and right sides. Small explosions can shoot either of the side blocks away from block C and along the x axis. Here is the sequence: (1) At time t = 0, block L is shot to the left with a speed of 3.10 m/s relative to the velocity that the explosion gives the rest of the rocket. (2) Next, at time t = 0.60 s, block R is shot to the right with a speed of 3.10 m/s relative to the velocity that block C then has (after the second explosion). At t = 3.20 s, what are (a) the velocity of block C (including sign) and (b) the position of its center?
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