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A 63.0-kg sprinter starts a race with an acceleration of 4.20 m/s2 . what is the net external force on him?

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Yna9141
From Newton's second law of motion, it was stated that the net external force on a certain object can be calculated by multiplying its mass to the acceleration. This can mathematically be expressed as,
     Fnet = m x a
where m is mass and a is acceleration.

Substitute the known values to the equation,
      Fnet = (63 kg) x (4.20 m/s²)
      Fnet = 264.6 kg m/s²
 
ANSWER: Fnet = 264.6 N
Ritmeks

The net external force of the sprinter is 264.6 N

The parameters given in the question are;

mass= 63 kg

acceleration= 4.20 m/s2

The formula that can be used to calculate the net force is;

= mass × acceleration

= 63 × 4.20

= 264.6 N

Hence the net external force of the sprinter is 264.6 N

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https://brainly.com/question/23927344?referrer=searchResults

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