Two metal balls are dropped from a third story window at the same time. They're the same size but one weighs

Question

twice as much as the other. The time to reach the ground will be
a. twice as long for the heavy ball
b. twice as long for the light ball
c. about the same for both
d. considerably longer for the light ball but not necessarily twice as long
e. considerably longer for the heavy ball

Answer 1

If they are solid metal balls, the most likely answer is C, about the same time.

However... it is possible to envision two hollow metal spheres of large diameter and low mass, such that both reach terminal velocity before hitting the ground. In this case, the heavier of the two could reach the ground noticeably sooner, making D a possible answer.

Answer 2

c, about the same.

Imagine you dropped 3 identical balls, they would obviously hit the ground at the same time.

Now imagine repeating this experiment, but this time two of the balls are connected by a loose piece of thread. All 3 balls would hit the ground at the same time again.

Now imagine the thread is replaced by a light weight stick. Again, all balls hit the ground simultaneously.

Now just stick the two balls together. Still, all balls hit the ground at the same time.

Now get the two balls and squash them together into one big ball, twice the size of the lone ball. You can see that the small and large balls all fall at the same rate, and hit the ground at the same time.

The heavier ball has twice the weight force pulling it down, but it is also twice as hard to accelerate it. These two effects exactly cancel one another out, so the weight is independent of the acceleration due to gravity, which is 9.81 m/s^2

Answer 3

Gravity is the reason. Anything dropped from the same heigh will always hit the ground at the same time because there's only one gravitational pull that works on everything. However things can sometimes stop things from working out like that such as a feather being dropped will float down because the wind and air is strong enough to move it

Answer 4

Barring wind resistance, objects fall at the same speed. The difference between the two balls is that the heavier one will exert a greater force upon landing. Time will be about the same.

Answer 5

C: about the same for both.

G (acceleration due to gravity) is the same for both. The only thing that would alter the speed is resistance.

Terminal velocity would not be reached from a third story window.

If they were in a vacuum, a bowling ball and a feather would fall at the same speed.
.

Answer 6

They will hit the ground at the same time because GRAVITY is the only force acting on each ball giving each ball an acceleration of 9.80 m/s^2. Therefore, they hit the ground AT THE SAME TIME.

Answer 7

That's a bad question. What the heck does "considerably" or "about"mean? The big ball will fall faster because it will have a greater mass to surface area ratio which means air resistance will slow it down less.

Answer 8

C, because galileo proved that two objects of the same shape and density, but of different sizes, fall at the same speed when he performed his experiment on the Leaning Tower of Piza.

Answer 9

Exactly the same for both. C

terminal velocity

Answer 10

c.about the same for both