Calculate the amount of work done if you use a 100 N force to push a 50 kg box 5 m across the kitchen floor.
2 answers:
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Answer:
7.85 m/s.
Explanation:
Given,
Mass of the bowling ball, m = 34 Kg
radius, r = 0.22 cm
height of the inclination, h = 4.4 m
transnational velocity = ?
Moment of inertia of bowling ball,
Using conservation of energy
We know that
Speed of the bowling ball is equal to 7.85 m/s.
Answer:
A : A restoring force acts on an object in simple harmonic motion that is directed in the same direction as the object's displacement.
Explanation:
Statement A is the false one:
A : A restoring force acts on an object in simple harmonic motion that is directed in the same direction as the object's displacement. --> FALSE. The restoring force in the simple harmonic motion is given by
where
k is the spring constant
x is the displacement of the system, measured with respect to the equilibrium position
As we can notice from the equation, there is a negative sign in front of (kx): this means that the force, F, and the displacement, x, have opposite directions. In fact, the restoring force of a simple harmonic oscillator always acts to restore the equilibrium position, therefore it acts in the opposite direction as that of the displacement.