Physics, 04.04.2020 10:53, NCT2005

In Example 10.1 (p. 234), if the pebble was instead launched at a 45 degree angle above the horizontal, how would the total mechanical energy of the system change compared to when the pebble was launched directly upwards?

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In Example 10.1 (p. 234), if the pebble was instead launched at a 45 degree angle above the horizont...