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vivado [14]
3 years ago
7

HALP me!! This is a physics question.

Physics
2 answers:
zepelin [54]3 years ago
5 0
Distance 6.9 m

Work done

345 kJ = 345000

Force 5 x 10 4 = 50000 N
emmasim [6.3K]3 years ago
4 0
<h2>Answer:</h2>

<u>Distance covered is 6.9 meters</u>


<h2>Explanation:</h2>

Data given:

Work Done = 345 kJ = 345000 J

Force = 5 x 10 ^ 4 =  50000 N

Distance = ?


Solution:

As we know that

Work Done = Force applied x Distance covered

By arranging the equation we get

Work / Force = Distance covered

By putting the values

345000 / 50000 = 6.9

So distance covered is 6.9 meters

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Explanation:

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Answer:

Explanation:

Given the height reached by a balloon after t sec modeled by the equation

h=1/2t²+1/2t

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If h(t)=1/2t²+1/2t

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b) Velocity is the change of displacement of a body with respect to time.

v = dh/dt

v(t) = 2(1/2)t²⁻¹ + 1/2

v(t) = t + 1/2

when v = 0sec

v(0) = 0 + 1/2

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at v = 30secs

v(30) = 30 + 1/2

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c) Velocity is the change of displacement of a body with respect to time.

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