Question

If ball is acted upon by the following velocity (1) 3 meter per second East (2) 11 metre per second South (3) 5 under root 2 metre per second North /East. Find the magnitude and the direction of the resulted velocity

Answer 1

Answer:

<br> due East,

due South an

vec (OS) =5 sqrt 2 ms^(-1)

45^(0)

vec (OS)

5 sqrt 2 cos 45 ^(0) =5 ms^(-1)

5 sqrt 2 sin 45^(0) =5 ms^(-1)

A= 3+ 5 =8 m//s

vec (OP)'

B=11 -5 =6 m//s

vec (OQ')

vec (R)

vec (OT)

/_P'OQ' =90^(0)

vec (R)

<br>

<br> Let

make and angle

with East, then

tan

<br> or