Heather and jerry are standing on a bridge 56 above a, Ask an Expert

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Q1. A 0.435- hockey puck, moving east with a speed of 5.00, has a head-on collision with a 0.610- puck initially at rest.

Q2. Heather and Jerry are standing on a bridge 56 above a river. Heather throws a rock straight down with a speed of 15. Jerry, at accurately the same instant of time, throws a rock straight up with the equal speed. Overlook air resistance.

Q3. A .0022 kg spider is suspended from the thin strand of spider web. The greatest tension the strand can withstand without breaking is .042 n. What is the maximum acceleration with which the spider can safely ascent strand?

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