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motikmotik
4 years ago
7

You serve a volleyball with a mass of 2.1 kg the ball leaves your hand with the speed of 30 m/s the ball has kinetic energy calc

ulate it
Mathematics
1 answer:
IgorC [24]4 years ago
7 0

Answer:

945 J

Step-by-step explanation:

ball mass : m1=2.1kg

Speed of ball:  V=30m/s

K=?

--------------------------------------

Use equation for Kinetic energy:

K=m*V²/2

K=2.1kg*(30m/s)²/2

K=(2.1kg*900m²/s²)/2

K=945J

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