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3 years ago

5

A box of mass m is pushed at an angle 0 by a force Fp along a frictionless surface. The box travels to right with acceleration a

. What is the mass of the box?

2 answers:

Alex787 [66]3 years ago

7 0

Answer:

m = FpCos0 / a

Explanation:

it just is

Genrish500 [490]3 years ago

5 0

Answer:A block rests on a horizontal, frictionless surface. A string is attached to the block, and is pulled with a force of 45.0 N at an…

Explanation:

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Answer:

Explanation:

Given that,

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Mass of the lighter car m_2 = 1350 kg

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b) the change in the combined kinetic energy of the two-car system during this collision

$\Delta K.E=(\frac{1}{2} m_1v_1^2+\frac{1}{2} m_2v_2^2)-(\frac{1}{2} m_1u_1^2+\frac{1}{2} m_2u_2^2)\\\\=\frac{1}{2} (m_1(v_1^2-u_1^2)+m_2(v_2^2-u_2^2))$

substitute the value in the equation above

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Hence, the change in combine kinetic energy is -2534.78J

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