Question

The army is testing a new method to calculate the speed of its bullets consisting of a block of mass m = 7kg attached to a spring of elastic constant k=1100N/m, on a table without friction. They fire a bullet of mass m= 40grams and it becomes embedded in the block causing the spring to compress a maximum distance d = 30cm Calculate the initial velocity of the bullet. (Omit all kinds of energy loss from the bullet such as sound or heat)​

Answer 1

Answer:

700.7m/s

Explanation:

refer to the attachment

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Answer 2

$\implies$The army is testing a new method to calculate the speed of its bullets consisting of a block of mass m = 7kg attached to a spring of elastic constant k=1100N/m, on a table without friction. They fire a bullet of mass m= 40grams and it becomes embedded in the block causing the spring to compress a maximum distance d = 30cm Calculate the initial velocity of the bullet. (Omit all kinds of energy loss from the bullet such as sound or heat)