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3 years ago

A 4,350 kg truck traveling east has a momentum of 26,100kg m/s what's the trucks velocity

Physics

1 answer:

Angelina_Jolie [31]3 years ago

4 0

Answer:

6 m/s East

Explanation:

Momentum = Mass . Velocity

26100 = 4350. Velocity

Velocity = 6m/s East

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Answer:

$\Delta K = 52J$

Explanation:

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We know that the formula for the kinetic energy for an object is:

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For our case then we have:

$\Delta K = K_f-K_i=\frac{mv_f^2}{2}-\frac{mv_i^2}{2}=\frac{m(v_f^2-v_i^2)}{2}$

Which for our values is:

$\Delta K = \frac{m(v_f^2-v_i^2)}{2} = \frac{(26Kg)((2m/s)^2-(0m/s)^2)}{2} = 52J$

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