A 10 g bullet is fired into a 9.99 kg wood block that is at rest on a wood table. The block, with the bullet embedded, slides 5.0 cm across the table. What was the speed (in m/s) of the bullet? Take µ = 0.36.

Engineering

Physics

Static and Kinetic Friction

Collision

Momentum and Energy Conservation for System of Particles

Question

A 10 g bullet is fired into a 9.99 kg wood block that is at rest on a wood table. The block, with the bullet embedded, slides 5.0 cm across the table. What was the speed (in m/s) of the bullet? Take µ = 0.36.

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$O^{2} = u^{2} - 2 \times 3.6 \times \frac{5}{100}$

$u^{2} = \frac{36}{100}$

$u = \frac{6}{10} = 0 .6 m / s$

$\frac{10}{1000} v + 0 \times 9.99 = 10 \times 0.6$

v = 10 × 0.6 × 100 = 600 m/s