Question

A ball is thrown horizontally from a 20-m-high building with a speed of 5.0m/s
a. Draw a graph of Vx, the vetical velocity, as a function of time.
b. Draw a graph of Vy, the vertical velocity, as a function of time.

Answer 1

@ProfBrainstorm

Answer 2

Part (b) involves some work. Gravity will influence the object and cause it to speed up. The initial speed vertically is 0 though.

The object will accelerate and gain 9.8 m/s every second it falls.

For 20 m:
20 = 1/2 * 9.8 * t^2
t = 2.02 s

So the object will gain velocity steadily at a rate of 9.8 m/s for the extent of its fall (2 s roughly).

Answer 3

thank you so much...will u be able to help me another probleM?