9. A toy helicopter is 22 meters high as it flies at a velocity of 10 m/s, the helicopter's mass is 3
1 answer:
Answer:
M. E=KE+PE
m. e =1/2mv2+mgh
PE=3X9.81X22
647.46
KE=1/2X3X10^2
150
KE+PE=647.46+150=797.46
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