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A 12 kg rock falls from rest off a cliff and hits the ground in 1.5 s What is the velocity?
Wiki User
∙ 14y ago
The acceleration of gravity is 9.8 meters/sec2.
In 1.5 seconds after it's dropped, any object is falling at (9.8 x 2) = 19.6 meters/sec.
The mass of the rock makes no difference.
Wiki User
∙ 14y ago
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As an object falls freely in a vacuum its?
velocity increases as it falls due to the force of gravity acting on it. Since there is no air resistance in a vacuum, the object will continue to accelerate until it reaches its terminal velocity or hits the ground.
If rock at rest falls off a cliff and hits the valley below after 3.5 seconds what is the rocks velocity as it hits the ground?
The velocity of the rock as it hits the ground can be calculated using the formula: velocity = acceleration due to gravity × time taken. Assuming the acceleration due to gravity is -9.81 m/s^2 (negative sign indicates downward motion), the velocity of the rock as it hits the ground would be approximately -34.335 m/s.
What is the momentum of the mass just before it hits the ground?
The momentum of a mass just before it hits the ground depends on its velocity and mass. The momentum is given by the equation momentum = mass x velocity.
A coin falls from rest from the balcony of a building If it takes 2.7s for it to hit the ground what is the final velocity of the coin?
The final velocity of the coin when it hits the ground can be calculated using the equation of motion: v = g*t, where v is the final velocity, g is the acceleration due to gravity (9.8 m/s^2), and t is the time taken (2.7s). Plugging in the values, the final velocity of the coin will be approximately 26.46 m/s.
A penny that was dropped hit the ground in 4.5 seconds what was the velocity of the penny?
The velocity of the penny when it hits the ground can be calculated using the formula: velocity = acceleration due to gravity x time taken to fall. The acceleration due to gravity is roughly 9.81 m/s^2. Therefore, the velocity of the penny when it hits the ground is 44.145 m/s.
If a rock falls at rest off a cliff and hits the ground in 1.5s what's the rock's velocity?
14.20m/s/s or 14.20m/s2 (the 2 is suppose to be the square sign)
A 12 kg rocks falls from rest off a cliff and hits the ground in 1.5 s.without considering air resistance what is the rock s velocity just before it hits the ground?
The velocity is gravity acceleration x time or (9.8)(1.5) = 14.7 m/s. The velocity is not dependent on the mass.
What happens as an object falls from earth?
the velocity of the object increases until it hits the ground
A rock is dropped from a cliff and hits the ground 6.0 seconds later How high is the cliff?
176.4 meters
What happens an object falls?
It falls, accelerating constantly until it hits the ground.
What falls often but never hits the ground?
The temperature.
If rock at rest falls off a cliff and hits the valley below after 3.5 seconds what is the rocks velocity as it hits the ground?
The velocity of the rock as it hits the ground can be calculated using the formula: velocity = acceleration due to gravity × time taken. Assuming the acceleration due to gravity is -9.81 m/s^2 (negative sign indicates downward motion), the velocity of the rock as it hits the ground would be approximately -34.335 m/s.
When air resistance balances weight the velocity becomes?
Terminal. It stays at that one velocity til the object hits the ground.
How does the total energy change when when a falling rock hits the ground?
when the rock falls it gain kinetic energy when it falls.
What happens when a tree falls down?
it hits the ground
A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant before it hits the ground?
A child drops a ball from a window. The ball strikes the ground in 3.0 seconds. What is the velocity of the ball the instant before it hits the ground?
A ball is thrown horizontally from a cliff and hits the ground 4 seconds later 40 meters from the base of the cliff How fast was the ball thrown?
10 m/s
