Aninitially stationary block and comes to rest in the block

Reference no: EM13645894

A bullet of mass 7.7 g is fired into aninitially stationary block and comes to rest in the block. The block, of mass 1.21 kg, is subject to nohorizontal external forces during the collision with the bullet.After the collision, the block is observed to move at a speed of5.50 m/s.

a) Find the initial speed of the bullet.
b) How much kinetic energy is lost?

Reference no: EM13645894

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