Question

A ball is thrown with an initial velocity of 80 feet per second at an angle of 40 degrees with the horizontal. Find the vertical and horizontal components.

Answer 1

the vert and horiz are just the component parts of the "right triangle" sides that are scaled to a hypot of 80

Answer 2

sin(40) = the up of a unit circle
cos(40) = the horiz of a unit

scale them by 80

Answer 3

80 cos40 is horizontal and 80 sin40 is vertical component
by the right angled triangle method

Answer 4

when you say scale them by 80 you mean?...

Answer 5

multiply them by 80

Answer 6

oh ok

Answer 7

thanks man

Answer 8

the radius (or hypotenus) of a unit circle is 1; in this case we need it to be 80