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Jun 29, 2008 **...** What is the **kinetic energy** of a **baseball moving** at a **speed** of **40m**/**s if** the base
ball **has** a **mass** of **0.15 kg**? A car **moving** at a **speed** of 20m/s ...

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What is the **kinetic energy** of a **baseball moving** at a **speed** of **40** ...

Apr 29, 2011 **...** **Kinetic Energy** = 1/2 **Mass** (**kg**) * velocity squared (**m**/**s**) ... KE =1/2(**0.15 kg**)(**40 m**/
**s**)^2 ... Anything **moving has Kinetic energy** so a **moving baseball** bat **has** ... **If** it is
still it **has** potential energy **if** it is **moving** it **has kinetic energy**.

For more information, see What is the **kinetic energy** of a **baseball moving** at a **speed** of **40** ...

Step 1: Recall the formula for kinetic energy of an object = \frac{1}{2} m v^2 joules where m is the mass in kg and v is the speed in m/s.

Step 2: Identify the values of m and v. m = 0.15 kg, v = 40 m/s

Step 3: Plug in the values and solve. = \frac{1}{2} \times 0.15 \times 1600 joules = 120 joules.

The Kinetic energy can be found out by the formula

\frac{1}{2}mv^{2}

Plugging in m= 0.15 and v = 40 we get K.E = 120 J