Question

Now how far the will the ball in the problem below will hit the ground?
a. 10m
b. 6.4m
c. 9.6m
d. 20m
e. 140m


a ball rolls off the table top 2m tall. with a velocity of 10m/s. with what speed will it strike the ground?


V^2 = Vo^2 + 2g*h
V^2=0^2+2*9.8*2
V^2=39.2^2
v=6.3m/s

Answer 1

h = 0.5g*t^2

h = 2 m.
g = 9.8 m/s^2
t = Fall time.
Solve for t.

Dx = Xo * t

Dx = Hor. distance from table.
Xo = 10m/s = Initial hor. velocity.
Solve for Dx.