Mrs. Clause wants to make a toy elf that can jump over a 1.5 m high wall. Beginning with the Law of Conservation of Energy, show her the work for each step to solve for the initial velocity that the toy elf needs to
have as it jumps off of the ground. Ignore the effects of air resistance. Show your equation, work and final
answer with units.

the answer is cat

Explanation:

cat is alys right never dout

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.