1. At what speed does a 1700 kg compact car have the same kinetic energy as...

1. At what speed does a 1700 kg compact car have the same kinetic energy as a 1.80×10⁴ kg truck going 23.0 km/hr ?

2.The cable of a crane is lifting a 850 kg girder. The girder increases its speed from 0.25 m/s to 1.25 m/s in a distance of 3.5 m.

Part 1: How much work is done by gravity? Express your answer with the appropriate units.

Part 2: How much work is done by tension? Express your answer with the appropriate units.

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Expert Solution

genius_generous answered 1 year ago

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