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Annette [7]
4 years ago
14

A bullet moving horizontally with a velocity of 40.0 m/s strikes a sandbag and penetrates a distance of 20.0 cm before coming to

rest. what is the acceleration of the bullet in m/s?
Physics
1 answer:
wlad13 [49]4 years ago
3 0

Answer:

-4000 m/s²

Explanation:

Given:

Δx = 0.200 m

v₀ = 40.0 m/s

v = 0 m/s

Find: a

v² = v₀² + 2aΔx

(0 m/s)² = (40.0 m/s)² + 2a (0.200 m)

a = -4000 m/s²

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A fan cart initially has an acceleration of 1.6m/s/s when it's fan is directed straight backwards. If you rotate the fan by 45°,
Sholpan [36]

Answer:

A Fan Cart Initially Has An Acceleration Of 1.6m/s/s When It's Fan Is Directed Straight Backwards. If You Rotate The Fan By 45o, By What Percentage Do You Expect The Fan Cart's Thrust To Decrease? (Answer Should Be In Units Of 96)

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The correct answer is d.

d. 50%

Explanation:

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or 0.707×D. The thrust becomes 0.25×π×(0.707×D)²×ρ×v×Δv

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