A 40.0 kg ballet dancer stands on her toes physics more in details?

A 40.0 kg ballet dancer stands on her toes during a performance with four square inches (26.0 cm2) in contact with the floor. What is the pressure exerted by the floor over the area of contact in the following cases?

(a) if the dancer is stationary

_______ Pa

(b) if the dancer is leaping upwards with an acceleration of 3.00 m/s2

_______ Pa

A 40.0 kg ballet dancer stands on her toes physics more in details?dream theater

a) P = F/A

F= mg = 40.0 * 9.81 = 392.4 N

A = 26.0cm^2 = 0.0026 m^2

P = 392.4 / 0.0026 = 150,923 Pa

b) F = mg + ma = 40.0(9.81) + 40.0(3.00) = 512.4 N

A = 0.0026 m^2

P = 512.4 / 0.0026 = 197,077 Pa

A 40.0 kg ballet dancer stands on her toes physics more in details?performing arts opera theater

First you need to convert Kg to force. remember gravity is 9.8m/s^2

So after you work out the standing force in newtons you can calculate the force she jumps with and add that

Sorry dear. you really do need to do the exercises on your own

A 40.0 kg ballet dancer stands on her toes physics more in details?

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