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Q1. As part of a safety investigation, two 1800 cars travelling at 18 are crashed into different barriers. Find an average forces exerted on (a) car that hits a line of water barrels and takes 1.80 to stop, and (b) car that hits a concrete barrier and takes 0.4 to stop.

Q2. A plastic sphere floats in water with 65.0 percent of its volume submerged. This same sphere floats in glycerin with 51.8 percent of its volume submerged.

Determine the density of the glycerin.

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Category:- Physics
Reference No.:- M9163549

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