Let v be the velocity when the ball is at 640 feets going downwards
v = 48 feet /sec
let the velocity with which it reaches the ground be u
then,
u2=v2+2gh
g = acc due t ogravity in feet/sq.sec
h = 640 feet
the time taken to reach the ground
= time to return to 640ft + the time to fall from there Time taken to get to the ground is 8 seconds. Final velocity is 208 feet per second downwards
26.7 seconds
240 ft
The three second rule is a rule that says: You have 3 seconds to pick up food that is dropped to the ground before it is considered to have gone bad. There are many factors involved that can change the rule, for example the type of food dropped (sticky or not), the condition of the ground (dirty or clean), and who is watching (the people who will eat the food or you are all alone).
If the ball was dropped from a roof and hit the ground 3.03 seconds later, then when it hit the groundits velocity was 29.694 meters (97.42 feet) per second (rounded) downward.
They should reach the ground together, since their initial vertical speed is the same, namely zero.
Dropped objects hit the ground at the same time (as long as they're dropped from the same height) because the acceleration of gravity is constant. On earth, it's 9.8 meters per second (32.2 feet per second) every second.
26.7 seconds
The tree was 26.5 m tall.
240 ft
593 meters.
the second bomb was dropped on Nagasaki
The three second rule is a rule that says: You have 3 seconds to pick up food that is dropped to the ground before it is considered to have gone bad. There are many factors involved that can change the rule, for example the type of food dropped (sticky or not), the condition of the ground (dirty or clean), and who is watching (the people who will eat the food or you are all alone).
There was only 1 balloon which was Felix the Cat.
rule is:average speed = distance/time taken=95inches/56 hundredths of a second=95/0.56=169.6428571 inch/second
The speed is 44.4... repeating metres per second.
The second bomb was called Little Boy and it was dropped on Nagasaki.
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.