# A bullet travelling at 300 m/ pierces a hole 10 cm. Deep in a block of wood before it comes to rest . Calculate the deceleration of the bullet

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by iza

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by iza

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Deceleration = a m/sec²

u = 300 m/sec

s = 10 cm = 0.1 m

v = 0

v² = u² + 2 a s

a = (0² - 300²) / (2 * 0.1)

a = - 4,50,000 m/sec²

u = 300 m/sec

s = 10 cm = 0.1 m

v = 0

v² = u² + 2 a s

a = (0² - 300²) / (2 * 0.1)

a = - 4,50,000 m/sec²