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Illusion [34]
3 years ago
14

Plzzz help me fast i have absolutly no f-r-i-c-k-e-n idea what this is or how to do it

Physics
2 answers:
Masja [62]3 years ago
8 0

Answer:

Explanation:

PE=mgh

mass, m is 50kg

gravity, g is 10m/s^2

height, h is 4m

So Potential Energy, PE

=50*10*4

=2000J

vodomira [7]3 years ago
4 0

P.E =mgh

=5o x 4 x 10

Explanation:

= 2000J

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A tugboat tows a ship with a constant force of magnitude F1. The increase in the ship's speed during a 10 s interval is 5.0 km/h
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given,

time  = 10 s

ship's speed = 5 Km/h

F = m a

a is the acceleration and m is mass.

In the first case

F₁=m x a₁

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F₁ is constant acceleration is also a constant.

Δv₁ = 5 x 0.278

Δv₁ = 1.39 m/s

a_1=\dfrac{1.39}{10}

a₁ = 0.139 m/s²

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a_3=\dfrac{5.282}{10}

a₃ = 0.5282 m²/s

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0.5282 = a₂ + 0.139

a₂=0.3892 m²/s

F₂ = m x 0.3892...........(1)

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