Measuring the speed of a bullet

3. Measuring the speed of a Bullet The following problem models one method of finding the speed of a fast object, in this case a bullet. A 1.25 kg wooden block is placed on a horizontal surface with a small hole that allows for a bullet to pass through from below, as illustrated in the figure. The bullet, of mass m - 5.00 g is fired straight upward into the block and remains lodged in the block. Assume that the acceleration due to gravity is 10 m. T 1vo A m a. The bullet strikes along a line that passes through the middle of the block. After striking the block, the middle of the block is observed to rise 22.0 cm. What speed does the block have after being struck by the bullet? Explain how you arrived at the speed. b. Consider the system composed of the bullet and the block, is the momentum of this system conserved? Explain your conclusion. c. Calculate the speed of the bullet just before it strikes the wooden block. Explain your calculation