Question

Identify the Newton's law that best explains this situation- A hand pases through a piece of wood in a karate chop. (Please explain your reasoning)

Answer 1

newton's 2nd law.

F=(p2-p1)/(t2-t1)

or F(t2-t1)=p2-p1=constant

if t2-t1 is small then F is large......

Answer 2

can you please explain this.

Answer 3

this is also known as impulse.

Ft=rate of change of momentum=constant

since the product of F and t is constant so as F increases t decreases and vice-versa.