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blagie [28]
3 years ago
7

Show that the expression vf = vi + at is dimensionally correct

Physics
1 answer:
11111nata11111 [884]3 years ago
4 0
To show that the expression given is dimensionally correct, we can do a dimensional analysis where we write the units of each term in the expression.

vf [=] vi + at 
m/s [=] m/s+ (m/s²) (s)
<span>m/s [=] m/s+ m/s
</span><span>m/s [=] m/s
</span>
Therefore, the expression is dimensionally correct.
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A small 1.0 kg steel ball rolls west at 3.0 m/s collides with a large 3.0 kg ball at rest. After the collision, the small ball m
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The direction of the momentum of the large ball after the collision with respect to east is 146.58°.

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Using conservation of momentum

m_{1}u_{1}+m_{2}u_{2}=m_{1}v_{1}+m_{2}v_{2}

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tan\theta=\dfrac{0.66}{-1}

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Hence, The direction of the momentum of the large ball after the collision with respect to east is 146.58°.

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