Answer :
A sprinter of mass 57 kg must exert a horizontal force of 243.25 N on the starting blocks to produce an acceleration of 4.25 m/s².
To produce an acceleration of 4.25 m/s², a sprinter of mass 57 kg must exert a horizontal force of 243.25 N on the starting blocks.
The horizontal force required to produce a certain acceleration can be calculated using the formula: F = ma, where F is the force required m is the mass of the object, and a is the acceleration produced.
Substituting the given values: F = (57 kg)(4.25 m/s²)F = 243.25 N
Therefore, a sprinter of mass 57 kg must exert a horizontal force of 243.25 N on the starting blocks to produce an acceleration of 4.25 m/s².
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