A rock is dropped off a cliff and falls the first half of the distance to the ground in t1 seconds. If it falls the second half of the distance in t2 seconds, what is the value of t2/t1? (Ignore air resistance.)
Answers
Final answer:
In this physics problem, by using the equation of motion, it was found that the time taken for a free falling object (under gravity and ignoring air resistance) to fall the second half of its total distance (t2) is sqrt(3) times greater than the time taken to fall the first half (t1).
Explanation:
This question falls under the category of Physics, and represents a common problem in the study of kinematics. To answer, we first define the two halves of the journey of the falling rock. We're given that the rock covers the first half distance in t1 time and the second half distance in t2 time. Since the falling object is under the influence of gravity (ignoring air resistance), it accelerates during its descent. Therefore, t2 > t1 or t2/t1 > 1.
A classical physics equation we can use is s = ut + 0.5at^2, where 's' represents distance, 'u' is the initial velocity, 'a' is the acceleration, and 't' is the time. Since the rock is dropped, the initial velocity 'u' is 0. Hence, the equation become 's = 0.5at^2'
Since the rock is being dropped, it falls under constant acceleration due to gravity (approximated as 9.8m/s^2). For the first half of the drop, the distance is s/2 = 0.5*g*(t1)^2, and for the second half of the drop, the distance is s/2 = 0.5*g*(t2)^2.
Solving these equations can help us find the relationship between t1 and t2. If we solve for t2 in terms of t1, keeping in mind that total distance (s) and acceleration due to gravity (g) remain the same in both cases, we obtain t2 = sqrt(3)*t1 approximately, i.e., t2/t1 = sqrt(3).
Learn more about Kinematics here:
#SPJ12
Related Questions
The purpose of a fuse or circuit breaker is _____.to speed up the currentto slow down the currentto stop current that is flowing too fastto stop current that is flowing too slow
Comic strip hero Superman meets an asteroid in outer space and hurls it at 100 m/s. The asteroid is on thousand times more massive than superman is. In the strip, superman is seen at rest after the throw. Taking physics into account, what would be his recoil speed?
Which types of radioactive decay cause the parent nucleus to become a different element or isotope (and thus are useful for radioactive dating)? Group of answer choices Alpha decay Beta decay Gamma decay Both alpha and beta decay Both beta and gamma decay All three: alpha, beta, and gamma decay
if two wires run parallel and the current passes through both wires in the same direction, which happens to the wires?
Answers
Answer:c
Explanation:ganglandd
B) They are absorbed
C) The change into P-waves
D) They change into L-waves
Answers
Answer:
B) They are absorbed
Explanation:
B is correct because S waves can only travel through solid materials. When they hit liquid materials they are absorbed in and undetectable.
Answer:
B) They are absorbed
Explanation:
When they hit the liquid core, S-waves are no longer able to be detected. While P-waves bounce off the liquid core, S-waves are absorbed at the core.
Answers
It is an ion.
What is hydrogen atom?
A hydrogen atom is an atom of the chemical element hydrogen.
The electrically neutral atom contains a single positively charged proton and a single negatively charged electron bound to the nucleus by the Coulomb force.
An atom is a neutral species.
Hence, it must have same number of electrons and protons. On other hand, ions have charge.
So, the number of protons and electrons are not same.
According to the question,
Hydrogen has one proton, two neutrons, and no electrons.
This signifies that overall charge of species is +1.
Hence, it is an ion.
Learn more about hydrogen atom here:
#SPJ2
Answers
Answer:
Speed will be equal to 1.40 m/sec
Explanation:
Mass of the rubber ball m = 5.24 kg = 0.00524 kg
Spring is compressed by 5.01 cm
So x = 5.01 cm = 0.0501 m
Spring constant k = 8.08 N/m
Frictional force f = 0.031 N
Distance moved by ball d = 15.8 cm = 0.158 m
Energy gained by spring
Energy lost due to friction
So remained energy to move the ball = 0.0101 - 0.0048 = 0.0052 J
This energy will be kinetic energy
v = 1.40 m/sec
Answers
Answer: True on odyssey
Explanation:
Answers
Final answer:
The rate at which electrical energy is converted to another form of energy is called power.
Explanation:
In an electric circuit, electrical energy is continuously converted into other forms of energy. For example, when a current flows in a conductor, electrical energy is converted into thermal energy within the conductor. This process is called power. Power is the rate at which energy is transferred or work is done, and is measured in watts.
Learn more about Power here:
#SPJ6