Table of Contents
What is the kinetic energy at the top of the trajectory?
KE at top of trajectory is 1/2 mass times (V cos30)^2. For example: A 2 kg object is fired on a 30 degree trajectory at 1000 meters/second.
Is there kinetic energy at the top of a projectile?
The vertical velocity of a projectile is zero at its maximum height, so vertically , the projectile will have no kinetic energy.
Is kinetic energy 0 at the top of a trajectory?
The horizontal component of the velocity is constant in a ballistic trajectory, it is the same at points A, B, and C. The kinetic energy is zero only when the ball is stationary, and the ball is stationary only at E: so this is the only point where the kinetic energy is zero.
What is the kinetic energy of a ball at its highest point?
At an object’s maximum height, kinetic energy is zero/ maximum while the potential energy is zero/ maximum.
How do you find Ke at the highest point?
At the highest point of parabolic path of projectile ,vertical component of velocity is zero and only horizontal component, vx=(20)(cos 40 degrees) is there. So, kinetic energy =(1/2)(0.2)[20(cos 40 degrees)]^2. You find this value.
What happens to kinetic energy at the highest point of projectile motion?
At the highest point during the projectile motion, the vertical component of the velocity becomes zero, and only the horizontal component survives, therefore the kinetic energy at the highest point is only because of the horizontal component of the velocity and the vertical component of velocity does not contribute to its kinetic energy.
Why is the kinetic energy zero at the top most point?
Thus at the top most point the kinetic energy becomes zero as “Ke=1/2mv²” and v(velocity) is zero here. Instead entire kinetic energy changes to potential energy. 2. If a projectile is projected at some angle to the horizontal then the velocity wouldn’t be zero at the top most point.
Where does kinetic energy come from at the maximum altitude?
Kinetic energy comes from movement. At maximum height the projectile has stopped and is about to start falling. No movement, no KE. Edit: As Cameron mentioned in his answer, there would still be KE at the maximum altitude if the projectile was not fired straight up.