remove dead try/except wrapper around mass * acceleration in newtons_second_law_of_motion

[HrachShah]

The function is annotated (mass: float, acceleration: float) -> float and multiplying two floats cannot raise an exception on valid inputs.

The previous wrapper:

force = 0.0
try:
    force = mass * acceleration
except Exception:
    return -0.0
return force

was dead code that:

• silently masked TypeError when a caller violated the type contract (e.g. passing a string)
• silently swallowed KeyboardInterrupt and SystemExit
• returned the unusual signed zero -0.0, which can poison downstream numerical code (it equals 0.0 in equality checks but is distinct in repr and bit pattern)

Replacing the wrapper with a plain return mass * acceleration makes the implementation match the function's annotated type signature and its existing doctests (newtons_second_law_of_motion(10, 10) == 100 and newtons_second_law_of_motion(2.0, 1) == 2.0).

[algorithms-keeper]

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