Question

If v=3i+4j+5k is the instantaneous velocity of a body mass 1.5kg. Calculate it's kinetic en
ergy.c choose the correct one
a)37.5joules
b)47.5joules
c)57.5joules
d)none

Answer 1

KE = 1/2 mv^2
|v|^2 = 3^2+4^2+5^2 = 50
1/2 * 1.5 * 50 = 37.5

Answer 2

V= 3i+ 4j + 5k indtaneous velocity mass 1.50 kilograms calculate its ke

Answer 3

37.5

Answer 4

a)37.5joules

Answer 5

Thanks 😊 you