First right from energy 50 J, equated to 1/2 m v2 the value of v initial velocity could be calculated. Now using s = v2/ g we can calculate required S.
Now with m=2, we get v2 = 50 and using g as 10 m/s2 approx
we get required s = 5m
2.5 meters
200
200 meters
Joules is a unit of energy. The rating says how much energy they can absorb in a surge without being damaged. If damaged by a surge you better just throw it out.
There is no such thing as gravitational energy.The ball has the most potential energy at the apex of its throw.
Kinetic Energy is moving energy. Here's a small experiment: 1. Throw a ball in the air (Straight up) 2. Watch it 3. When starts falling down, that's kinetic energy
Kinetic Energy is moving energy. Here's a small experiment: 1. Throw a ball in the air (Straight up) 2. Watch it 3. When starts falling down, that's kinetic energy
It's kinetic energy is highest when it is about half way to the top. The gravitational potential energy is highest when it is about to fall back down.
At the time of the throw: Kinetic energy = 0.5*mass*(speed)^2 = 0.5*0.5*4 = 1J. There is also the potential energy at the time of the throw. If you want to know the kinetic energy at the time the ball hits the ground, that term must be added: Potential energy (with respect to the ground) at the time of throw = mass*gravity*height = 0.5*9.8*0.5 = 2.45 J.
Throw it straight up.
The players do not need energy to throw or pass a basketball
When you throw matter from a height, mechanical energy is not conserved by you, but it is by the matter. You are exerting mechanical energy to throw the object, and the matter is conserving it by not having to do any work to move.
kenetic energy
throw the arrows straight
In order to throw a snowball as hard as you can and it come back to you, you must throw the snowball straight up into the air.