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const2013 [10]
3 years ago
5

How much work will be done on a 30kg object traveling at 20 m/s from the rest?

Physics
1 answer:
Fofino [41]3 years ago
6 0
Yes it will 90 i am ver vwery  sureee!!!!!!
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A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift i
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Mass m = 78 kg

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(a).

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Final speed v = 1.1 m / s

v^2=u^2 + 2 as

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a = 0.055 m/s²

Work done

W_a= m g h + \dfrac{1}{2}mv^2

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(b).Work done

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c)

Work done

W= m g h + \dfrac{1}{2}m(v_f-v_i)^2

Where V = final speed

               = 0

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for deceleration a = -0.055 m/s²

now,

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3 years ago
What is the another name for the lower fixed point?
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I believe another name for lower point is Ice point
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3 years ago
Read 2 more answers
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