physics
posted by meg .
An object is thrown straight up. At the same instant that the object reaches its maximum height, a second object is dropped from this maximum height. Which object hits the ground first and why?
Also, a ball is thrown straight up. If the ball's initial velocity is considered positive, what is the acceleration of the ball while ascending? And how would you draw a vector diagram for this problem? Help me please! thanks.

physics 
bobpursley
Do this. Please give me your thinking on this, and let me critique. It will help you more doing it that way.

physics 
meg
Well i think that the one that is dropped from the maximum height will hit the ground first because it doesn't have negative velocity like the one thrown from the ground has.
And the second question I don't understand at all? Please help. and thank you.
Respond to this Question
Similar Questions

math
using this information: if an object is thrown straight up into the air from the height H feet per second then at time tseconds the height of the object is 16.1t^2 +Vt+ H feet. This formula uses only gravitational force, ignoring … 
math
using this information: if an object is thrown straight up into the air from the height H feet per second then at time tseconds the height of the object is 16.1t^2 +Vt+ H feet. This formula uses only gravitational force, ignoring … 
math. can someone explain this!
using this information: if an object is thrown straight up into the air from the height H feet per second then at time tseconds the height of the object is 16.1t^2 +Vt+ H feet. This formula uses only gravitational force, ignoring … 
Math
The acceleration of an object g = 9.8 m/s^2. From the top of a building of 245 m., an object is thrown upwards at an initial velocity of 12m/s (a) What is the function for the velocity of the object? 
physics
two objects are thrown from the top edge of a cliff with a speed of 10 m/s. one object is thrown straight down and the other straight up. if the first object hits the ground in 4.0 second, the second hits the ground in ________ seconds … 
math
An object that is falling or vertically projected into the air has it height, in feet, above the ground given by the formula below, where s is the height in feet, Vo is the original velocity of the object, in feet per second, t is … 
Physics
One object is thrown straight up at 54.9 m/s from the ground at the base of a building with is 157.9 meters tall. At the same time the object is thrown up at the bottom of the building, another object is thrown straight down at the … 
physics
An object is being thrown upward at 50m How long does it take the object to reach maximum height? 
physics
An object is dropped from a bridge.A second object is thrown downwards 2.00s later.They both reach the water 35.0m below at the same instant.What is the initial speed of the second object? 
Algebra
Help Please, ty A ball is launched at 20 meters per second (m/s) from a 60 meter tall platform. The equation for the object's height s at time t seconds after launch is s(t) = –4.9t2 + 20t + 60, where s is in meters. What is …