Question

A particle has initial velocity of 3 + 4 j and an acceleration of.4 +.3 gt speed after 10 seconds is

Answer 1

Let’s solve this using an equation of motion called v=u+at

u=3i+4j

a=0.3j+0.4i

t=10

v=4j+3i+10(0.3j+0.4i)

v=7i+7j

|v|={2(49)}^1/2

|v|=7(2^1/2)

i hope answer is helpfull