Akarate expert executes a swift blow and breaks a cement block with her bare hand. the magnitude of the force experienced by her hand is

Explanation:

A karate expert executes a swift blow and breaks a cement block with her bare hand. There is a collision between the block and her hand.

Impulse is the change in the momentum of an object when the object is acted upon by a force for a short interval of time.

The time of impact on both the karate's expert of hand and the cement block is same. The force on both karate expert's hand and the cement block have the same magnitude. Therefore, the impulse is same. Only the velocity and acceleration change can differ for two colliding objects between the block and her hand.

The magnitude of the force experienced by her hand is identical to the force applied to the block.

double the distance = divide strength by 4