Question: A particle moves in a straight line under the influence of a constant force of 3 N. If it moves 6 m, what is the work done by the force?
Options:
9 J
12 J
15 J
18 J
Correct Answer: 18 J
Solution:
Work done = Force × Distance = 3 N × 6 m = 18 J.
A particle moves in a straight line under the influence of a constant force of 3
Practice Questions
Q1
A particle moves in a straight line under the influence of a constant force of 3 N. If it moves 6 m, what is the work done by the force?
9 J
12 J
15 J
18 J
Questions & Step-by-Step Solutions
A particle moves in a straight line under the influence of a constant force of 3 N. If it moves 6 m, what is the work done by the force?
Correct Answer: 18 J
Step 1: Identify the force acting on the particle, which is given as 3 N (Newtons).
Step 2: Identify the distance the particle moves, which is given as 6 m (meters).
Step 3: Use the formula for work done, which is Work = Force × Distance.
Step 4: Substitute the values into the formula: Work = 3 N × 6 m.
Step 5: Calculate the result: 3 × 6 = 18.
Step 6: State the final answer: The work done by the force is 18 J (Joules).
Work Done – Work done by a force is calculated as the product of the force applied and the distance moved in the direction of the force.
Constant Force – The problem involves a constant force, simplifying the calculation of work done since acceleration and other factors remain uniform.
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