1. The work done by the wind to lift the car 0.6 m high is 7761.6 J
2. the work done by the wind to lift the car moving at 8 m/s is 42240 J
What is work done?
This is defined as the product of force and distance moved in the direction of the force. Mathematically, it is written as:
Work (Wd) = Force (F) × distance (d)
Wd = Fd
Since height is involved,
Wd = mgh
Where
- m is the mass
- g is the acceleration due to gravity
- h is the height
1. How to determine work done
- Mass (m) = 1320 Kg
- Acceleration due to gravity (g) = 9.8 m/s²
- Height (h) = 0.6 m
- Work done (Wd) =?
Wd = mgh
Wd = 1320 × 9.8 × 0.6
Wd = 7761.6 J
2. How to determine the work done
- Mass (m) = 1320 Kg
- Velocity (v) = 8 m/s
- Work done (Wd) =?
Work = Energy = ½mv²
Work done = ½ × 1320 × 8²
Work done = 660 × 64
Work done = 42240 J
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