Question

A bullet having a mass of 10g and moving with a speed of 1.5m/s penetrate a Thick wooden plank of mass 90g. The plank was initially at rest. The bullet gets embedded in the plank and both move together. dertermine their velocity

Answer 1

Explanation:

before the bullet is entering into it after that you can find out the common velocity as in the attachment initially the wooden planks velocity can be taken as zero because it is at rest here common means Commonwealth of wooden plank and the bullet