Question

How does the magnitude of the vertical component of velocity for a ball tossed at an upward angle change as the ball travels upward? How about the horizontal component of velocity when air resistance is negligible?

Answer 1

the vertical component of velocity will decrease till it will reach the highest point of its path

But in horizontal direction there is no force on the ball so it will have no change in the velocity

Step-by-step explanation:

As the ball is tossed upward at some angle then in that case the two components of velocity is given as

`v_x = vcos\theta`

`v_y = vsin\theta`

now we know that the force on the ball is only due to gravity

it is given as

`F_y = F_g`

so there is acceleration of ball due to gravity in vertically downward direction

so it is given as

`a = - g`

so we can say that the vertical component of velocity will decrease till it will reach the highest point of its path

But in horizontal direction there is no force on the ball so it will have no change in the velocity