Question

6 points) A Wooden block of mass M-1 ke is hanging from a string 50 cm long. A 3 gram bullet is tired at block of wood as shown below (left drawing). The bullet embeds itself in the wood, and the block swings up on the right to a maximum height such that the pendulum string makes an angle of 30° with respect to the vertical. How fast was the bullet going before it hit the wooden block? L-50 cm L-50 cm 300 m -3 g

Answer 1

M= 1kg L - 50cm m.3g hanging mass daring length bault mass Initial velocity of block 30 tgoth de 2013 fos30-d de du cod 30 dz 0.5 x0066 d= 0.43 m ch. L-d - 50043 - 7 cm h = 0.07m podential energy of block at height with bullet u Diem - (0.003+1) 9.8 x 0:07 - (1.003) 0-686 067 1 kinetic envigyo of bullet u kinetic energy of block is K 7 = mv2 2no initially, so so, we are not considuing it Imre: 0.67 the kinltic thingy of bullet will be convinted to v? - 0:67x2 potential energy of block and 0003 bullet mass system. V = 2113 m/s