Aprojectile of mass 2 kg is fired with a speed of 20 m/s at an angle of 30° with respect to the horizontal. (a) calculate the initial total energy of the projectile given that the reference point of zero gravitational potential energy at the launch position. (b) calculate the kinetic energy at the highest vertical position of the projectile. (c) calculate the gravitational potential energy at the highest vertical position. (d) calculate the maximum height that the projectile reaches. compare this result by solving the same problem using your knowledge of projectile motion.
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Physics, 22.06.2019 07:00
Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.
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Physics, 22.06.2019 07:30
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
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Aprojectile of mass 2 kg is fired with a speed of 20 m/s at an angle of 30° with respect to the hori...
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