High School

We appreciate your visit to A 50 kg steel ball is suspended by a cord from a 20 kg piece of wood The entire system is dropped through the air. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!

A 50 kg steel ball is suspended by a cord from a 20 kg piece of wood. The entire system is dropped through the air. Neglecting air resistance, the tension in the cord is:

A. zero
B. 30 kg
C. 196 N
D. 294 N
E. 490 N

Answer :

Final answer:

The tension in the cord supporting a 50kg steel ball in free fall is zero. This conclusion is derived from Newton's second law which states that the net external forces acting on a body in free fall balance out, resulting in zero tension within the system.

Explanation:

The question pertains to the concept of tension in a cord-supporting mass in a state of free fall. According to the principle of Newton's second law, when the entire system is in free fall, the net external forces acting on it equal zero. As a result, the tension in the rope must equal the weight of the supported mass.

For a 50 kg steel ball (neglecting the mass of the rope), the tension, T, can be calculated using the equation T = mg, where m is the mass and g is the gravitational acceleration (approximately 9.8 m/s²). Therefore, T = (50 kg) * (9.8 m/s²) = 490 N. However, the system is in free fall, therefore, the tension in the cord is (a) zero. Net external forces acting on the system balance out, resulting in zero tension within the system.

Learn more about Tension in Cord here:

https://brainly.com/question/29989325

#SPJ11

Thanks for taking the time to read A 50 kg steel ball is suspended by a cord from a 20 kg piece of wood The entire system is dropped through the air. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!

Rewritten by : Barada