This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
A box of mass 40 kg is being dragged along the floor by a rope inclined at 60° to the horizontal. The frictional force between the box and the floor is 100N and the tension on the rope is 300N. How much work is done in dragging the box through a distance of 4m?
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ScanSolve AI Answer
Answer
400 J
Step 1: Identify the work done in dragging the box.
The work done in dragging the box against friction is given by the formula
where is the frictional force and is the displacement along the floor.
Step 2: Substitute the given values.
, .
Step 3: Simplify.
B. 400 J
400 J
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Quick Answer
Identify the work done in dragging the box. The work done in dragging the box against friction is given by the formula W = f · d, where f is the frictional force and d is the displacement along the floor.
ScanSolve AI Answer
Step 1: Identify the work done in dragging the box. The work done in dragging the box against friction is given by the formula W = f · d, where f is the frictional force and d is the displacement along the floor. Step 2: Substitute the given values. f = 100~N, d = 4~m. W = 100~N × 4~m Step 3: Simplify. W = 400~J B. 400 J 400 J