Question

A 10.0 kg wood ball hangs from a 2.10 m-long wire. The maximum tension the wire can withstand without breaking is 300 N. A 0.900 kg projectile traveling horizontally hits and embeds itself in the wood ball Part A What is the largest speed this projectile can have without causing the cable to break? Express your answer with the appropriate units. Value Units Submit Request Answer Provide Feedback

Answer 1

Using the maximum tension find the speed of the system just after collision as shown below. Then use conservation of momentum principle to find the required speed of the projectile.

7 let the speed just after impact be u, then T-pt mig - (nt move => 300N – (2019 +0.919g = (2019 +0.9192v2 C 2.1m v = 61 m/s from momentum conservation mv. = (M+ mv » (0.9kg) Vo = (2019+0-969) * Vo = [73.9 m/s

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