If a car’s speed doubles, its kinetic energy increases by 4, if its speed triples then the
kinetic energy increases by 9
.
When a car’s speed doubles and its mass doubles its kinetic energy?
1 Answer. Kinetic energy of a body depends on its mass and its speed. Hence, ,
kinetic energy will become 4 times the original kinetic energy
if the speed is doubled.
What happens to kinetic energy if speed is tripled?
If the speed triples, how does the kinetic energy change?
The kinetic energy increases as the square of the speed
. If the speed triples, how does the kinetic energy change? The kinetic energy increases by a factor of 9.
When the speed of a car is tripled its kinetic energy changes by a factor of?
Answer: When the velocity triples, the kinetic energy goes up by a factor of
9
because the velocity gets squared while mass remains constant.
When the speed of a moving car is tripled how much more kinetic energy does it have?
This equation reveals that the kinetic energy of an object is directly proportional to the square of its speed. That means that for a twofold increase in speed, the kinetic energy will increase by a factor of four. For a threefold increase in speed, the
kinetic energy will increase by a factor of nine
.
What happens to kinetic energy when you double the mass?
In fact,
kinetic energy is directly proportional to mass
: if you double the mass, then you double the kinetic energy. Second, the faster something is moving, the greater the force it is capable of exerting and the greater energy it possesses.
What happens to the kinetic energy of an object if the speed is cut in half?
If the velocity of abody is halved,
its kinetic energy becomes one fourth as kinetic energy is directly proportional to velocity squared
.
What is the relationship between mass and kinetic energy?
An object with less speed and more mass could potentially have the same Kinetic energy. The equation for Kinetic Energy is:
KE = 1/2 mv
2
.
Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object.
What will be the new kinetic energy of a body if its velocity is doubled?
If the velocity is doubled its kinetic energy is
multiplied by four times
. And there is no relationship between the velocity and potential energy. So, if the velocity is doubled, momentum also doubles.
What factors affect kinetic energy?
The two main factors that affect kinetic energy are
mass and speed
. Why? Because the motion of an object depends on how fast it’s traveling, but also how much mass it has, though velocity is the more important factor.
Which will have the greatest impact on kinetic energy?
The more mass
an object has, the more kinetic energy it has.
Which is the best example that something has kinetic energy?
A bicycle or skateboard in motion
possesses kinetic energy. Running water has kinetic energy and it is used to run water mills. Moving air has K.E and is used to derives windmills and push sailing boats, similarly, a bullet fired from a gun has kinetic energy and can penetrate into a target because of its K.E.
What would have the greatest kinetic energy?
Which vehicle has the greatest kinetic energy?
The motorcycle
has the most kinetic energy because it is the vehicle with the least mass. All of the vehicles have the same kinetic energy because they are moving at the same speed.
Does a bike or car have more kinetic energy?
The car has a kinetic energy is 100 times higher than the kinetic energy of the bicycle
, which means that it took 100 times more work to accelerate the car from rest to 10 m s−1 than it took to accelerate the bicycle from rest to 10 m s−1 .
What happens when you double the mass?
It means that if force is constant, as mass is increased, acceleration decreases. resistance to changes in motion (also known as INERTIA.) … If the net force on an object is doubled, its acceleration will double If the mass of an object is doubled, the acceleration will be
halved
.
When the speed of a body is halved its kinetic energy becomes?
Answer: Ek is directly proportional to the square of speed of a body. So, if speed is halved, kinetic energy becomes
one fourth of the original
.
