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What has greater kinetic energy a 1 lb ball rolling down a hill a 200 lb person running down a hill or a car driving down a hill?
The car driving down a hill will have the greatest kinetic energy due to its larger mass and likely higher velocity compared to the 1 lb ball rolling and the 200 lb person running down the hill. Kinetic energy is calculated as 0.5 * mass * velocity^2, so a higher mass and velocity will result in greater kinetic energy.
What has more kinetic energy a mass of 200 grams or a mass of 2000 grams or a mass of 20000 grams?
Assuming all have equal velocity the greater mass (20000g) will have the greater kinetic energy.
What is a 4 kg rock rolling 10 ms. Kinetic energy?
The kinetic energy of the rock can be calculated using the formula KE = 0.5 * mass * velocity^2. Substituting the values, KE = 0.5 * 4 kg * (10 m/s)^2 = 200 J. Thus, the kinetic energy of the rock is 200 Joules.
If error in the measurement of momentum of a particle is 100 percent then the error in the measurement of kinetic energy is what?
p=mv %errror in p= %error in m+%error in v lowest value of m=0 hence %error in velocity=100% k.e=%error in mass=2*%error in velocity K.E=200% similarly K.Eminimun=100% total error in K.E = 100+200 =300 hence error in ke = 300%
What type of energy is contained in a moving bullet?
velocity Kinetic energy is equal to (1/2)mv2, where m is mass and v is velocity. Higher velocities contribute even more to higher kinetic energies than higher masses since velocity is squared in the equation. For comparison, a 6.35 kg bowling ball moving at 7.6 m/s will have a kinetic energy of 183.4 Joules. A 0.02 kg bullet moving at 200 m/s will have a kinetic energy of 400 Joules. (Increase that to 300 m/s, and the kinetic energy moves up to 900 Joules.)
How converts gravitational potential energy into mechanical energy?
question : a 10 kg body is allowed to freefall from rest from a height of 10 m, what will be its velocity ? assume g = 10 (m/s)/s the potential energy lost will = kinetic energy gained mgh = 10*10*10 = 1000 joules velocity after fall = sq root (2*g*s) = 14.14 m/s ke = 0.5*m*v^2 = 0.5*10*200 = 1000 joules
A slow moving car may have more Kinetic Energy than a fast moving motorcycle How is it possible?
A slow moving car may have more kinetic energy than a fast moving motorcycle if the car has a greater mass. Kinetic energy is proportional to both mass and velocity, so a higher mass can compensate for a lower velocity in terms of total kinetic energy.
How do you calculate in kinetic energy just before it hits the ground with a 200 kilogram and is raised 10 meters above the ground?
You can calculate the kinetic energy just before hitting the ground using the formula for potential energy and kinetic energy. First, calculate the potential energy at the initial height using mgh (mass x gravity x height). Then equate this value to the kinetic energy just before hitting the ground using the formula 1/2mv^2 (0.5 x mass x velocity squared) and solve for the velocity.
What is the velocity of a 1000kg car if its kinetic energy is 200kJ?
KE = 1/2mass * velocity squared some conversion needed 60 kilometer per hour (1000 meters/1 kg)(1 hr/3600 seconds) = 17 meter per second ================= KE = 1/2(1000 kilograms)(17 m/s)2 = 1.4 X 105 Joules ------------------------
What are some conservation of energy practice problems with answers that can help me understand the concept better?
One conservation of energy practice problem involves a roller coaster at the top of a hill. If the roller coaster has a potential energy of 1000 J at the top of the hill and a kinetic energy of 200 J at the bottom, what is the total mechanical energy of the roller coaster system? To solve this problem, you can use the conservation of energy principle, which states that the total mechanical energy of a system remains constant if only conservative forces are acting on it. In this case, the roller coaster system only experiences gravitational potential energy and kinetic energy. At the top of the hill, the roller coaster has 1000 J of potential energy. At the bottom, it has 200 J of kinetic energy. Therefore, the total mechanical energy of the roller coaster system is: Total mechanical energy Potential energy Kinetic energy Total mechanical energy 1000 J 200 J Total mechanical energy 1200 J So, the total mechanical energy of the roller coaster system is 1200 J. This practice problem helps illustrate how energy is conserved in a system and how potential and kinetic energy are related.
What is the kinetic energy of a 200kg boulder when it is 1000m above the ground?
The kinetic energy of the boulder when it is 1000m above the ground is zero because at that height, the boulder is not in motion. The kinetic energy of an object is given by the formula KE = 0.5 * m * v^2, where m is the mass of the object and v is its velocity.
What is the kinetic energy of 4 kilograms of bowling ball travelling down the lane at 10 meter per second?
The kinetic energy of the bowling ball can be calculated using the formula: KE = 1/2 * m * v^2, where m is the mass and v is the velocity. Plugging in the values, KE = 1/2 * 4 kg * (10 m/s)^2 = 200 Joules.
