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SOVA2 [1]
3 years ago
15

Starting at ttt_1 = 0 ss , a horizontal net force F⃗ =(F→=( 0.265 N/sN/s )ti^+)ti^+(-0.460 N/s2N/s2 )t2j^)t2j^ is applied to a b

ox that has an initial momentum p⃗ =p→= (( -3.00 kg⋅m/skg⋅m/s )i^+()i^+( 4.05 kg⋅m/skg⋅m/s )j^)j^ .
Business
1 answer:
hram777 [196]3 years ago
6 0

Answer:

The momentum of the box at t = 2 s is given as

p₂ = (-2.47î + 2.82ĵ) kgm/s

Explanation:

F = [(0.265 N/s)t] î + [(-0.460 N/s²)t²] ĵ

F = (0.265t) î - (0.460t²) ĵ

At t = 0

Initial momentum

p₀ = (-3.00 kg⋅m/s )î + (4.05 kg⋅m/s) ĵ

Find the momentum at t = 2 s

According to Newton's second law of motion, the change in momentum is equal to the impulse.

That is,

dp = F.dt

Δp = ∫²₀ F.dt

∫²₀ F.dt = ∫²₀ [(0.265t) î - (0.460t²) ĵ] dt

= [(0.1325t²) î - (0.1533t³) ĵ]²₀

= [0.1325(2²)] î - [0.1533(2³)] ĵ

∫²₀ F.dt= (0.53 î - 1.2267 ĵ) kgm/s

p₂ - p₀ = Δp = ∫²₀ F.dt = (0.53 î - 1.2267 ĵ)

p₂ = p₀ + Δp

p₂ = (-3.00î + 4.05ĵ) + (0.53 î - 1.2267 ĵ)

p₂ = (-2.47î + 2.8233ĵ) kgm/s

p₂ = (-2.47î + 2.82ĵ) kgm/s

Hope this Helps!!!

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3 0
2 years ago
What happens to the price of a good or service when a shortage of that good or service occurs?
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If shortage of goods and services occurs, obviously, the price will touch the sky, i. e. the price will increase twice or thrice the Real price...

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Rizenton-Pharm, a pharmaceutical company, produces a significant amount of chemical waste every day. The company disposes the wa
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Answer: (B) Legal responsibility

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The legal responsibility plays an important role in an organization or any company as it helps in ensure all the legal formalities done by the company with the supplier, manufacturer or deals with the other company.

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7 0
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sertanlavr [38]

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Hi, Consumer surplus happens when the price that consumers pay for a product or service is less than the price they're willing to pay.

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5 0
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