10. A mountain bike's suspension works on a
series of springs. What
is the energy stored in
the spring when the
bike goes over a bump
causing a compression
of 2cm. The spring
constant is 33N/m.

The energy stored in the spring when the bike goes over a bump is joules.

Explanation:

Let suppose that spring has a linear behavious, by means of Hooke's Law, definition of Work and Work-Energy Theorem we find that the potential energy stored in the spring (), measured in joules, is defined by:

(1)

Where:

- Spring constant, measured in newtons per meter.

- Deformation, measured in meters.

If we know that and , the energy stored by the spring due to compression is:

The energy stored in the spring when the bike goes over a bump is joules.

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yes the answer is total mass in unchanged   : )