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Gala2k [10]
3 years ago
10

A car travels 60 km in the first 2 hours and 68 km in the next 2 hours. what is the cars average speed ?

Physics
1 answer:
Lelu [443]3 years ago
3 0
You have to divide 60 and 68 by 2 and then add them together
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A force F with arrow applied to an object of mass m1 produces an acceleration of 3.10 m/s2. The same force applied to a second o
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(a) The value of the ratio m₁/m₂ is 0.581

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(b) the acceleration of m₁ and m₂ combined as one object under the action force F

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a = \frac{F}{M} \\\\a =  \frac{F}{m_1 + m_2} \\\\a = \frac{F}{0.581m_2 + m_2}\\\\a = \frac{F}{1.581m_2}

But, m_2 = \frac{F}{a_2} \\\\a = \frac{F}{1.581m_2} =  \frac{F*a_2}{1.581F} \\\\a = \frac{a_2}{1.581} \\\\a = \frac{1.8}{1.581} = 1.139 \ m/s^2

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