We know that S=ut+.5gt*t
here s=84m
g=9.8m/s*s
u=0
hence time is 4.14secs.
Ignoring any effects due to air resistance, the speed of the stone is zero at the instant it's dropped, and increases steadily to 78.98 meters per second when it hits the ground. The velocity is directed downward throughout the experiment.
If dropped from the same height (a few meters), they would appear to hit the ground at the same time, according to the experiments of Galileo. However, this neglects air resistance on the basketball, which will slow it down more and cause it to hit the ground later (very slightly later). The baseball, which has a smaller area and therefore less air resistance, will hit the ground first.
For the last 1.5m:s = ut + (1/2)at21.5 = ut + (1/2)*10*(109)21.5 - (1/2)*10*(109)2 = u * 109u = -545 ms-1It seems that for this situation to even exist, the lead weight must start going upwards from 1.5m at a speed greater than the speed of sound. This cannot happen if it's dropped off a building, obviously.For the situation to be believable, the time would have to be much shorter, or the distance much larger.
If it was thrown horizontally or dropped, and hit the ground 3.03 seconds later, then it hit the ground moving at a speed of 29.694 meters (97.42-ft) per second. If it was tossed at any angle not horizontal, and hit the ground 3.03 seconds later, we need to know the direction it was launched, in order to calculate the speed with which it hit the ground.
No, a feather and a nail would not reach the ground at the same time if dropped at the same height in a vacuum. This is because the feather experiences more air resistance, slowing its fall compared to the nail which falls faster due to its higher mass.
6 feet
There is no reason for the object to change.
Ignoring any effects due to air resistance, the speed of the stone is zero at the instant it's dropped, and increases steadily to 78.98 meters per second when it hits the ground. The velocity is directed downward throughout the experiment.
No
The height of a 6-storey building can vary depending on the design and purpose, but a typical storey is about 3 to 4 meters (10 to 13 feet) tall. Therefore, a 6-storey building would generally be around 18 to 24 meters (approximately 60 to 80 feet) tall from the ground to the top.
it would hit the ground, even if it hit some one the terminal velocity of a coin is not enough to kill them, it would just hurt like hell.
The time it takes for a volleyball to hit the ground when dropped from a height depends on the height it falls from. Using the formula for free fall ( t = \sqrt{\frac{2h}{g}} ), where ( h ) is the height in meters and ( g ) is the acceleration due to gravity (approximately ( 9.81 , m/s^2 )), you can calculate the time. For example, if dropped from 2 meters, it would take about 0.64 seconds to hit the ground.
Meters.
D = 1/2 g T2T = sqrt(2D/g) = sqrt( 109.2 / 9.8 ) = 3.335 seconds(rounded)
Yes, a hamster would likely die if it were dropped off the Empire State Building. The impact from such a height would generate a force greater than the hamster's body could withstand, resulting in fatal injuries upon impact with the ground. Additionally, the high velocity of the fall would contribute to the severity of the impact, further increasing the likelihood of death.
Yes or in yards
Because you ran out of yards?