Integrated and got position vector

[dagg3r]

3. A tennis ball is served horizontally from 2.4 m above the ground at 30m/sec
a) Find its velocity (V) at any time t seconds
b) Find its position vector (r) at any time t second

a) v= 30i - gtj
b) i integrated and got position vector as
p= 30ti(2.4-.5gt^2)j

is that it?

 

[HallsofIvy]

3. A tennis ball is served horizontally from 2.4 m above the ground at 30m/sec
a) Find its velocity (V) at any time t seconds
b) Find its position vector (r) at any time t second
a) v= 30i - gtj
b) i integrated and got position vector as
p= 30ti(2.4-.5gt^2)j
is that it?

I assume you meant 30ti+ (2.4- .5gt^2)j. If that is so, yes, that's correct.