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Aleonysh [2.5K]
2 years ago
13

How much force does it take to accelerate a 50.8 kg person at 3.50 m/s^2?

Physics
1 answer:
Vikki [24]2 years ago
8 0

Apply Newton's second law to the person's motion:

F = ma

F = net force, m = mass, a = acceleration

Given values:

m = 50.8kg, a = 3.50m/s²

Plug in and solve for F:

F = 50.8(3.50)

F = 178N

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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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Answer

Mass m = 78 kg

Vertical height in each stage h = 11 m

(a).

Initial speed u = 0

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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

W_a= 78\times 9.8 \times 11 + \dfrac{1}{2} 78 \times 1.1^2

W_a = 8408.4 + 47.19

W_a = 8455.59 J

(b).Work done

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W_b = 78× 9.8× 11

W_b= 8408.4 J

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

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7 0
3 years ago
The number of mushrooms needed by a pizza restaurant is given by the
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Answer: 24

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8 0
3 years ago
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