Question

*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

Answer 1

speed= 0.32m/s

Step-by-step 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