Question: A 3 kg object is pushed with a force of 15 N over a distance of 4 m. What is the work done on the object?
Options:
30 J
45 J
60 J
75 J
Correct Answer: 60 J
Solution:
Work done = Force × Distance = 15 N × 4 m = 60 J.
A 3 kg object is pushed with a force of 15 N over a distance of 4 m. What is the
Practice Questions
Q1
A 3 kg object is pushed with a force of 15 N over a distance of 4 m. What is the work done on the object?
30 J
45 J
60 J
75 J
Questions & Step-by-Step Solutions
A 3 kg object is pushed with a force of 15 N over a distance of 4 m. What is the work done on the object?
Step 1: Identify the force applied to the object, which is 15 N.
Step 2: Identify the distance over which the object is pushed, which is 4 m.
Step 3: Use the formula for work done, which is Work = Force × Distance.
Step 4: Substitute the values into the formula: Work = 15 N × 4 m.
Step 5: Calculate the result: 15 × 4 = 60.
Step 6: The work done on the object is 60 Joules (J).
Work – Work is defined as the product of the force applied to an object and the distance over which that force is applied, measured in joules (J).
Newton's Second Law – Understanding the relationship between force, mass, and acceleration, although not directly needed for this calculation, is fundamental in physics.
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