Physics: When a car of mass 1167 kg accelerates from 10.0 m/s to some final speed, 4.00 × 105 j of work are done. find this final speed?

When a car of mass 1167 kg accelerates from 10.0 - id1167100433108, fatimaacarrillo2005

Ответ:

Paigex3

11.03.2022

Physics

final speed = 28 m/s

Explanation:

As per work energy theorem we know that

Work done on the object = change in kinetic energy

so here we have

W = KE_f - KE_i

now we will have

$W = 4.00 \times 10^5 J$

also we know that

mass = 1167 kg

and initial speed is given as

v_i = 10.0 m/s

now from above work energy equation we will have

$4.00 \times 10^5 = \frac{1}{2}1167(v_f^2) - \frac{1}{2}1167(10^2)$

$4.00 \times 10^5 = \frac{1}{2}1167 v_f^2 - 58350$

$\frac{1}{2}(1167)v_f^2 = 4.00 \times 10^5 + 58350$

v_f = 28 m/s

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Ответ:

jessebeck0805

10.04.2022

Physics

The patient could be going through paralysis, which is when the motor neurons are severed which stops electrical signals from passing into the muscles. It can be caused by severe trauma to the body or psychological stress.

(I'm not sure if this is the best answer so you might want to double-check online)

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When a car of mass 1167 kg accelerates from 10.0 m/s to some final speed, 4.00 × 105 j of work are done. find this final speed?

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