The key variable that different the two type of jumps is direction of motion.
<h3>
High Jump</h3>
A high jump involves vertical upward upward motion that is limited by gravity.
The maximum height reached during a high jump is given as;
H = vt - ¹/₂gt²
<h3>Long Jump</h3>
A long jump involves horizontal distance that is not affected by gravity.
The horizontal distance traveled during a long jump is given as;
H = vt
Thus, the key variable that different the two type of jumps is direction of motion.
Learn more about direction of motion here: brainly.com/question/1674237
Answer:
the work done by friction is 12 J.
Explanation:
Given;
mass of the car, m = 2 kg
initial speed of the car, u = 4 m/s
final speed of the car, v = 2 m/s
The work done by friction is equal to change in kinetic energy of the car,
W = ΔK.E
W = ¹/₂m(v² - u²)
W = ¹/₂ x 2 (2² - 4²)
W = -12 J (the negative sign indicates that it is a wasted energy)
Therefore, the work done by friction is 12 J.
The smallest, electrically neutral assemblage of energy and matter that we know exists in the universe. it consists of a nucleus surrounded by a cloud of electrons is: an atom
The smallest unit of an element that still retains the distinctive behavior of that element is an: atom
A single atom of an element keep its distinctive behavior, that's because the atom is the smallest unit of the composition of a chemical element
<h3>What is an atom?</h3>
The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.
Learn more about the atom at: brainly.com/question/17545314
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