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A 5 kg block sits on a surface with a maximum static coefficient of friction of 0.60. A 10g bullet is fired into the block. Assume the collision is inelastic. Delta t = 1 second
a) What must be the speed of the bullet to just make the block start moving?
b) If the speed of the bullet is 5 times the speed satisfying part (a), how far will the block slide along the sirface before stopping?
c) How much kinetic energy is dissipated in the bullet/block collision?
d) now assume a completely elastic collision between the block and a 20g "super-ball". What must be speed of the projectile to just move the block?
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