AP EAMCET · PHYSICS · Work Power Energy
The power utilised when a force of \((2 \hat{\mathbf{i}}+3 \hat{\mathbf{j}}+4 \hat{\mathbf{k}}) \mathrm{N}\) acts on a body for \(4 \mathrm{~s}\), producing a displacement of \((3 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}+5 \hat{\mathbf{k}}) \mathrm{m}\), is
- A \(9.5 \mathrm{~W}\)
- B \(7.5 \mathrm{~W}\)
- C \(6.5 \mathrm{~W}\)
- D \(4.5 \mathrm{~W}\)
Answer & Solution
Correct Answer
(A) \(9.5 \mathrm{~W}\)
Step-by-step Solution
Detailed explanation
Force, \(\mathbf{F}=2 \hat{\mathbf{i}}+3 \hat{\mathbf{j}}+4 \hat{\mathbf{k}}\) Displacement, \(\mathbf{s}=3 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}+5 \hat{\mathbf{k}}\)…
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