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A motorist drives north for 35.0 minutes...

A motorist drives north for 35.0 minutes at 85.0 km/h and then stops then stops for 15.0 minutes .He next continues north ,travelling 130 km in 2.00 hours .
(a)What is his total displacement ? b)What is his average velocity ?

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(a)76.6km, (b)63.4km/hr.
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