mhra mhra
  • 14-06-2020
  • Physics
contestada

*An small toy water rocket has mass 2 kg and is moving upwards with 100 J of kinetic energy,
calculate the speed of the rocket

Respuesta :

jofreyzmuhozya09
jofreyzmuhozya09 jofreyzmuhozya09
  • 14-06-2020

Answer:

speed= 0.32m/s

Explanation:

given

mass=2kg

kinetic energy=100J

speed=?

from

KE=½mv²

v²=2kE/m

=√(2×100)/2000

=√(200/2000)

=√(1/10)

=√0.1

v =0.32m/s

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