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3 years ago

It would be appreciated if all questions were answered and have shown work. :)

Physics

2 answers:

Dmitrij [34]3 years ago

7 0

P = mv

P=75 (18) = 1350 kg-m/s

0.25 v= 0.05 (500)

V= 100 m/s

∆ mv = F∆t

55(20) =F(0.5)

denpristay [2]3 years ago

6 0

1. The formula for momentum is:
p = mv
p =75(18) = 1350 kg-m/s

2. We equate the momentum of the two objects
0.25 v = 0.05 (500)
v = 100 m/s

3. We use the formula for impulse:
Δmv = FΔt
55(20) = F(0.5)
F = 2200 N

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2 years ago

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Answer:

D = 1.8677 miles , θ = 24.28º at South of West

Explanation:

This is an exercise in adding vectors, the easiest way to solve them is to decompose the vectors and add each component algebraically. Let's use trigonometry

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x-axis (West-East direction)

X = x₁ + x₂ + x₃ + x₄

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The modulus of this displacement is we use the Pythagorean theorem

D = √ (X² + Y²)

D = √ (1.7025² + 0.768²)

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let's use trigonometry to find the direction

tan θ = Y / X

θ = tan⁻¹ Y / x

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as the two components are negative this angle is in the third quadrant

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3 years ago

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Gnesinka [82]

Answer:

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