A student performs a ballistic pendulumexperiment using an apparatus. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point).After the bullet hits the block, the block risesto its highest position, and continues swinging back and forth.The following data is obtained: the maximum height the pendulum rises is2.9 cm, the mass of the bullet is 67 g, and the mass of the pendulum bob is 822 kg. Find the final velocity of the system (m1 + m2) immediately after the collision and before the pendulum starts to swing upward. The acceleration of gravity is 9.8 m/s^2.Answer in units of m/s.

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