Verified Solution • 2025–26 Session moderate

QNEET-2023-Ph-324: NEET 2023 Physics - Class 11 NEET-2023-Ph-324 Solution: A particle moves with a velocity \((5 {i} - 3 {j} + 6 {k})\…

A particle moves with a velocity (5i^−3j^+6k^) ms−1(5\hat{i} - 3\hat{j} + 6\hat{k})\ \text{ms}^{-1} horizontally under the action of constant force (10i^+10j^+20k^) N(10\hat{i} + 10\hat{j} + 20\hat{k})\ \text{N}. The instantaneous power supplied to the particle is: 200 W Zero 100 W 140 W

Multiple Choice Options

  • A 200 W200 \mathrm{~W} 200   W
  • B Zero
  • C 100 W100 \mathrm{~W} 100   W
  • D 140 W140 \mathrm{~W} 140   W

Step-by-Step Verified Solution

P = F _ _ V _ P = ( 10 i ^ + 10 j ^ + 20 k ^ ) _ ( 5 i ^ _ 3 j ^ + 6 k ^ ) P = 50 _ 30 + 120 P = 140   W

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