The ballistic pendulum (Figure a) is a device used to measure the speed of a fast-moving projectile such as a bullet. The bullet is fired into a...

(a) Find the velocity of the system after the bullet embeds in the block.

 m/s

(b) Calculate the initial speed of the bullet.

 m/s

 A bullet with mass 5.47 g is fired horizontally into a 1.961-kg block attached to a horizontal spring. The spring has a constant  6.24  102 N/m and reaches a maximum compression of 6.04 cm.

(a) Find the initial speed of the bullet–block system. m/s(b) Find the speed of the bullet. m/s