Question

In: Physics

You (body mass = 71 kg) are taking off for a long jump. Horizontal acceleration is...

You (body mass = 71 kg) are taking off for a long jump. Horizontal acceleration is 5 m/s² and vertical acceleration is 0.9 m/s².

Calculate the horizontal ground reaction force. ____ N

Calculate the vertical ground reaction force._____N

Calculate the resultant ground reaction force. ____ N

Expert Solution

Mass of the body, m = 71 kg

Acceleration in the horizontal direction, a_h = 5 m/s²

Therefore the horizontal ground reaction force is, F_h = m*a_h = 71*5 N = 355 N

Vertical acceleration, a_v = 0.9 m/s².

If F_v is the vertical ground reaction force then equation of motion in vertical direction is:

Resultant ground reaction force:

genius_generous answered 2 years ago

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