Question

a motorboat is going in a River with velocity V=(4i+2j+kms) .if the resisting force due to stream is F=(5i-10j+6k)N,then the power of the motor boat is?​

Answer 1

⭐《ANSWER》

$\huge\mathfrak\pink {ANSWER}$

↪Actually welcome to the concept of the WORK , ENERGY AND POWER

↪since we know that ,

↪Power = Force * Velocity

↪since here the given data is as

↪F = 5i - 10j + 6k and V = 4i + 2j + 1k

↪thus gaining the dot product we get as

〽P = F . V

↪P = ( 5i - 10j + 6k). ( 4i + 2j + 1k)

↪P = 20 - 20 +6 =》 6

↪thus the power required is 6 joules

$\huge\mathfrak\pink {POWER = 6 JOULES }$

〽FLAME ON〽

Answer 2

POWER :

Answer:

6 W or J/s

Explanation:

Refer the attached picture.