2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-41

  • question_answer
    A particle gets displaced through \[\hat{i}+2\hat{j}+4\hat{k}\]due to force\[\left( 2\hat{i}-3\hat{j}+16\hat{k} \right)\] N in 3 seconds. The power in watts is:

    A) 18                    

    B) 6     

    C) 54                    

    D) 20

    Correct Answer: D

    Solution :

    Power = Rate of work done = \[\frac{W}{t}\] \[=\frac{F\times d}{t}=\frac{\left( 2\hat{i}3\hat{j}+16\hat{k} \right)\left( \hat{i}+2\hat{j}+4\hat{k} \right)}{3}\] \[=20 watt\]


You need to login to perform this action.
You will be redirected in 3 sec spinner