A golf ball is driven into the air at a speed of 90 miles per hour and an angle of 450 from the horizontal. Express the velocity in vector form.

Question

a. 

<25√2 ,25√2>

b. 

<45√2 ,45√2>

c. 

<25√2 ,45√2>

d. 

<45√3 ,45√3>

Answer 1

let angle = 45

and velocity=90

for horizontal velocity take 90cos45 and for vertical velocity 90sin45

vector form will be 90cos45 i +90sin45 j

hope it will help you