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23-11-2020
Mathematics

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A pitcher throws 152g baseball at a velocity of 30 m/s how much kinetic energy does the ball have?

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23-11-2020

Answer:

KE = 68.4J

The formula for Kinetic Energy is

KE = 1/2mv^2

m = mass (kg)

v = velocity (m/s)

152 grams to kilograms is 19/125kg

m=19/125

v=30

KE = 19/125 x 30^2

= 342/5

= 68.4

KE = 68.4J

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