One ounce of a well-known breakfast cereal contains 110 Calories (1 food Calorie 4186 J). If 2.0% of this energy could be converted by a weight lifters body into work done in lifting a barbell, what is the heaviest barbell that could be lifted a distance of 2.1 m?

Physics Notes: Week 1 Classical Mechanics: Physical Quantities time (seconds), length (meters), mass (kilo) SI Units (international system of units): kilo= 10 or 1,000 centi= 1 0 or 1 100 μ (micro)= 10 or 6 1 1,000,000 Ex. m→m 2.5cm 10⁻² −2 1 × 1cm = 2.5× 10 m or 0.025m Dimensional Analysis: Distance (m)= speed (rate in m × time (s) s → d = v × t