A 49.0 kg ballet dancer stands on her toes during a performance with four square inches (26.0 cm2) in contact?

Question

(a) if the dancer is stationary

(b) if the dancer is leaping upwards with an acceleration of 5.00 m/s2

Answer 1

What quantity are you asked to find in this problem? Pressure on the floor? Something else?

Pressure is force divided by area to which the force is applied. Remember to convert cm2 to m2 in order to get an answer in Pascals.

For part (b) use the concept of impulse. Impulse is equal to the change in momentum.