In the formula "W = Fs cos ", the angle between force and displacement () is equal to 90, the net work done will be: Option 1: Double Option 2: Positive but not double Option 3: Negative Option 4: Zero

Answer: Zero. Solution: Since 90 = 0, the formula W = Fs gives W = Fs x 0 = 0. Hence the net work done is zero when force is perpendicular to displacement.

General Knowledge

Science & Technology

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In the formula "W = Fs cos $\theta$ ", the angle between force and displacement ( $\theta$ ) is equal to 90 $\degree$ , the net work done will be:

Double

Positive but not double

Negative

Zero

✅ Correct Option: 4

Since $\cos 90\degree = 0$ , the formula $W = Fs\cos\theta$ gives $W = Fs \times 0 = 0$ . Hence the net work done is zero when force is perpendicular to displacement.

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Choose the correct answer from the options given below:

In the formula "W = Fs cos θ\thetaθ", the angle between force and displacement (θ\thetaθ) is equal to 90°\degree°, the net work done will be:

Solution

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CUET General Test Past Year Questions (Topic-Wise)

In the formula "W = Fs cos $\theta$ ", the angle between force and displacement ( $\theta$ ) is equal to 90 $\degree$ , the net work done will be: