A Student Is Hit A 1.5 Kg Pumpkin Pie. The Speed Of The Pie Is 8m/S. What Was The Kinetic Energy Of The Pie?

A student is hit a 1.5 kg pumpkin pie. The speed of the pie is 8m/s. What was the kinetic energy of the pie?

 

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Problem:

A student is hit a 1.5 kg pumpkin pie. The speed of the pie is 8 m/s. What was the kinetic energy of the pie?

Given Data:

m (mass) = 1.5 kg

v (velocity) = 8 m/s

K.E. (kinetic energy) = ? unknown

Solution:

The formula for Kinetic Energy is, K.E. = 1/2mv²

K.E. = 1/2mv²

        = 1/2 × 1.5 kg × (8 m/s)²

        = 1/2 × 1.5 kg × 64 m²/s²

        = 48 kg.m²/s²

        = 48 J

Answer:

48 J or 48 kg.m²/s²