how much work is done on an object with 25 kg on earth if it moves 13m?
i really need help
To calculate the work done on an object, you need to use the formula:
Work = Force × Distance × cos(θ)
In this case, the force can be calculated using Newton's second law of motion:
Force = Mass × Acceleration
But since the object is on Earth and not accelerating, the force is given by:
Force = Mass × Gravity
where the acceleration due to gravity on Earth is approximately 9.8 m/s².
So, substituting the values into the formula:
Force = 25 kg × 9.8 m/s² = 245 N
Next, since the force and distance are in the same direction (the object moves in a straight line), the angle between the force and displacement, θ, is 0°, and the cosine of 0° is equal to 1.
So, the work done can be calculated as:
Work = 245 N × 13 m × cos(0°)
= 245 N × 13 m × 1
= 3185 J
Therefore, the work done on the object with a mass of 25 kg, moving 13 m on Earth, is 3185 Joules.