Answer:
5770 J
Explanation:
Potential energy = kinetic energy + work
PE = KE + W
mgh = ½ mv² + W
(77.0 kg) (9.8 m/s²) (42.6 m sin 42.3°) = ½ (77.0 kg) (20.3 m/s)² + W
W = 5770 J
Answer:
The force is Inertia
Explanation:
The force that acts on an object to move it from rest or a constant straight line motion is known as Inertia.
In physics the above statement is governed by Newton's first law of motion which is also known as Law of Inertia.
This law states that, an object that is at rest will remain at rest and an object that is moving will continue to move in a straight line with constant speed, if and only if the net force acting on the object is zero.
This implies that, A stationary object will remain motionless if no force acts on it while a object with constant velocity will continue moving with constant velocity until a force acts on it (neglecting resistance from air and friction).
The atomic number of an atom is the number of protons in the nucleus of an atom.
There are in total 4 forces acting on the object. Let's call m the mass of the object and g the gravitational acceleration. We have:
1) The force that is pushing the book, making it sliding along the table. This force acts horizontally, in the same direction of the displacement.
2) The frictional force between the textbook and the table, acting horizontally in the opposite direction of the displacement. This force is equal to
where
is the coefficient of friction.
3) The weight of the object, acting vertically and downwards, equal to
4) The reaction force of the table against the textbook, acting vertically and upwards, equal to the weight of the object.
Answer:
Equilibrium is the state in which market supply and demand balance each other, and as a result prices become stable. The balancing effect of supply and demand results in a state of equilibrium