codyvega46 codyvega46
  • 15-03-2022
  • Physics
contestada


1. You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. The ball has __________________ energy. Calculate it.

Respuesta :

Snor1ax
Snor1ax Snor1ax
  • 15-03-2022
Kinetic energy = 1/2(MV²)

Given:
Mass = 2.1kg
Velocity = 30m/s

Substitute:
K.E = 1/2(2.1 x 30²)
K.E = 1/2( 2.1 x 900)
K.E = 2.1 x 450
K.E = 945 joules
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