Your nerf dart gun is able to shoot a suction cup dart at a speed of 5 m/s. Your room is 3 meters across. You want to shoot your
dart gun horizontally and hit the bulls-eye. How high above the bullseye would you need to aim for the dart to hit the spot you desire?
1 answer:
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Answer: gravitational potential energy is converted into kinetic energy
Explanation:
When the diver stands on the platform, at 20 m above the surface of the water, he has some gravitational potential energy, which is given by
where m is the man's mass, g is the gravitational acceleration and h is the height above the water. As he jumps, the gravitational potential energy starts decreasing, because its height h above the water decreases, and he acquires kinetic energy, which is given by
where v is the speed of the diver, which is increasing. When he touches the water, all the initial gravitational potential energy has been converted into kinetic energy.
Answer:
Explanation:
Kinetic Energy is the energy a particle, body or object possesses due to its movement and is mathematically defined as:
Where:
is the mass of the body
is the velocity of the body
So, if we want to calculate the kinetic energy of an object, we have to use the equation given above.