- #1

cs44167

- 8

- 0

- Homework Statement
- Calculate your acceleration while jumping, the net force that acts on you while jumping, and the force you exert on Earth when you jump.

- Relevant Equations
- w = mg

acceleration = Net force / mass

2.2 lb = 1 kg

This question required measurements which are the following:

my weight = 108 lbs

crouching distance (the distance from my regular height to where I crouch) = 90.6 cm

jump height = 60.4 cm

I first converted lb to kg, and I got 49.09 kg. I then used this value for w = mg and inputted 9.80 for g and got w = 481.09 N. I then used this force for a = net force / mass and found the acceleration to be 9.7999 m/s/s.

This answer was wrong, and I was wondering why I went wrong in my work. The answer made sense to me — the only force, neglecting air resistance, acting on someone in the middle of their jump is acceleration due to gravity.

my weight = 108 lbs

crouching distance (the distance from my regular height to where I crouch) = 90.6 cm

jump height = 60.4 cm

I first converted lb to kg, and I got 49.09 kg. I then used this value for w = mg and inputted 9.80 for g and got w = 481.09 N. I then used this force for a = net force / mass and found the acceleration to be 9.7999 m/s/s.

This answer was wrong, and I was wondering why I went wrong in my work. The answer made sense to me — the only force, neglecting air resistance, acting on someone in the middle of their jump is acceleration due to gravity.