A block of mass 2 kg is pushed along a horizontal surface with a force of 10 N.
Practice Questions
Q1
A block of mass 2 kg is pushed along a horizontal surface with a force of 10 N. If the block moves a distance of 5 m, what is the work done on the block?
10 J
20 J
30 J
50 J
Questions & Step-by-Step Solutions
A block of mass 2 kg is pushed along a horizontal surface with a force of 10 N. If the block moves a distance of 5 m, what is the work done on the block?
Correct Answer: 50 J
Step 1: Identify the force applied to the block, which is 10 N.
Step 2: Identify the distance the block moves, which is 5 m.
Step 3: Use the formula for work done, which is Work = Force × Distance.
Step 4: Substitute the values into the formula: Work = 10 N × 5 m.
Step 5: Calculate the result: 10 N × 5 m = 50 J.
Step 6: Conclude that the work done on the block is 50 Joules.
Work Done – Work done is calculated as the product of the force applied on an object and the distance over which the force is applied, in the direction of the force.
Newton's Second Law – Understanding the relationship between force, mass, and acceleration, although not directly needed for this question, is fundamental in physics.
