Question

kinetic energy of an object of 2kg having velocity [cosai^+sinaj^]ms-1 will be?

Answer 1

sorry I didn't get the chance

Answer 2

Answer:

1

Explanation

velocity = [cosai^+sinaj^]ms-1

speed = (cosa^2 + sina^2)^0.5                                  

_" (cosa^2 + sina^2) = 1 " _

speed = (1)^0.5

kinetic energy = 1/2 (mv^2)

                       = 1/2 (2) (1)

                       = 1 Joule