Multiple choice

A force vector (2i + 3j + 4k) N makes a body to move with a velocity of (3i - 2j + 5k) m/sec. The power applied in Watts is

  1. 20

  2. 15

  3. 10

  4. 5

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Power P = Force X Velocity = (2i+3j+4k). (3i-2j+5k) = 6 - 6 + 20 = 20J The correct answer is (1)