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3 years ago

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A 1.3kg physics cart is initially traveling 2.8m/s when it collides with an ideal spring (with a spring constant of 800N/m and n

atural length shown. The final time is defined as when the spring at maximum compression and the cart is about to rebound backwards. Neglect loss.

1 answer:

crimeas [40]3 years ago

7 0

Answer:

Explanation:

Initial is all kinetic energy

final is all potential energy (spring)

½kx² = ½mv²

x = √(mv²/k) = √(1.3(2.8²) / 800) = 0.01274 m or about 1.3 cm

L = L₀ - x = 0.439 - 0.013 = 0.426 m

F = kx = 800(0.01274) = 10.192 or about 10.2 N

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Answer:

The recoil speed of the man and rifle is $v_{man}=0.016 ms^{-1}$ .

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