One volunteer had a kinetic energy of 270 J and a speed of 3.0 m/s at the moment he left the ground. Calculate his mass.
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Ответ:
60kg
Explanation:
Ek =1/2 mv^2
Ek/0.5v^2 = m
270/0.5 x 3^3
=60kg
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Ответ:
Ответ:
The first one is 6.3m or 6.25m
The second is 60 m/s
Explanation: