- #1
ritwik06
- 580
- 0
Homework Statement
A bullet(mass 100 g) strikes a block of 4 kg kept on a table. The friction coefficient of table-block is 0.25. The bullet gets embedded and moves a distance of 20 m. Find speed of bullet.
Homework Equations
The Attempt at a Solution
Using Conservation of momentum,
speed of block + bullet= v/401 (v is the speed of the bullet)
now equating Energy;
Work one by friction = kinetic energy of system
0.25*4.01*10*20=0.5*4.01*(v/401)^2
v=4010
am i right?