# sarangz

a bus weighing 50 tonnes moving with a velocity of 60km/hr.Calculate the force required to stop it in 10 seconds.

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1. 60 km/hr = 16.67 m/s

So, the acceleration is

-16.67m/s
-------------- = -1.67 m/s^2
10s

Since F = ma, now you can find F

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2. 83500N

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3. Is the following statement true or false? Justify your answer using what you know about diameters and chords.

Every diameter of a circle is a chord.

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