Please help??

Question

Please help??

anonymous · Answer

attachment

shubhamsrg · Answer

How comfortable are you with eqns of motion ?

anonymous · Answer

Did you figure out your question?

aravindg · Answer

please post this in physics group

anonymous · Answer

what is the problem? A lot of problems assigned to mathematics classes are actually simple physics problem

phoenixfire · Answer

@sarah_hendrix7 Do you still need help?

anonymous · Answer

@PheonixFire If you're willing, I'd love some help.

anonymous · Answer

what do you know about an object in freefall?  what equation governs its trajectory?  in this case it's a single dimensional trajectory.  think of the acceleration due to gravity.

phoenixfire · Answer

Use the equation $$x_f=x_o+v_ot+{1 \over 2}at^2$$
Xf is final position
Xo initial position
Vo initial velocity
a acceleration (in this case just gravity)
t time

For your problem you can set Xo=0, Vo=0. plug in the rest and you'll know how far the object has fallen after time of 1.1 sec. 
I know this equation is not really needed because the values get set to 0 so here's the shorter version people tend to remember more: $$h={1 \over 2}at^2$$Now you know for reference where this equation is from.

phoenixfire · Answer

For question (b) take the first equation I gave you and rearrange for Vo. plug in the values and you should get the answer.