anonymous
  • anonymous
A projectile is fired at an upward angle of 45.0 degrees from the top of a 165-m cliff with a speed of 175 m/s. a) What is the total energy? b) What will its speed be when it strikes the ground below? Use conservation of energy; neglect air resistance.
Physics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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patti
  • patti
total energy = mgh + 1/2 mv^2, so couldn't you find the height * mgh?
anonymous
  • anonymous
You don't know the mass though?
anonymous
  • anonymous
We need to mass. No way around it.

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