zero
In order to calculate the answer we require the velocity of the mass as it hits the water.
This can be found using the simple equations of motion where we have a constant acceleration.
As such we can use:
V2 = U2 + 2AS
Where:
V = Final velocity (m/s)
U = Initial Velocity (m/s)
A = Acceleration (m/s/s)
S = Distance (m)
The initial velocity is 0, the acceleration is due to gravity (9.81 ms-2) and the distance equals 25m.
As such:
V2 = 02 + (2 x 9.81 x 25)
V2 = 0 + (490.5)
V = Sqrt(490.5)
V = 22.15 m/s
Kinetic energy (EK):
EK = 1/2MV2
(0.5x12) x 22.152
Kinetic Energy = 2,940 joules
The potential energy is mgh where m = 12kg, g = 9.814 m/s/s and h = 25 m. Kinetic energy = potential energy = (12)(9.814)(25) = 2944 joules
2,450 joules
It is approx 2900 Joules.
2,940
zero
2450
After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.
zero
2450
That's called kinetic energy. The formula is: Kinetic energy = (1/2) x mass x velocity2. If mass is in kilograms, and velocity (or speed, really) in meters per second, the energy will be in Joules.
Kinetic Energy = 1/2 x Mass x Velocity2 As the velocity while the rock is on the bridge's edge is 0, it does not have any kinetic energy: Therefore the answer is zero.
After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.
2450
zero
Kinetic Energy = 1/2(mass in kilograms)(meters per second)2
Kinetic Energy = 1/2 x Mass x Velocity2 As the velocity while the rock is on the bridge's edge is 0, it does not have any kinetic energy: Therefore the answer is zero.
That's called kinetic energy. The formula is: Kinetic energy = (1/2) x mass x velocity2. If mass is in kilograms, and velocity (or speed, really) in meters per second, the energy will be in Joules.
2,450 joules
Kinetic energy is the energy of motion. Your touching finger has mass and is moving some meters per second, so that motion is kenetic energy.
Kinetic energy = 1/2 x mass x velocity2. Mass in Kg, velocity in meters/sec, energy in Joules
Its kinetic energy (in joules) will be (31) times (its velocity in meters per second)2 .
No, Potential Energy is the energy of an object that has the potential to move while kinetic energy is the energy of an object at motion. Potential energy is defined by Mass * Gravity(9.81ms-2) * height(In meters) Kinetic energy is defined by (1/2)*Mass*Velocity2
Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.Calculate the potential energy at its highest point. Don't use the 6 meters above the ground - use the 5 meter difference from the lowest point. This part of the potential energy gets converted into kinetic energy, when the pendulum is at its lowest point. Just assume that all the potential energy (for the 5 meters difference) get converted into kinetic energy.