Question

In each of the five scenarios, a 1 kg mass is attached to the end of a massless stick by a massless string.

A) 0 N
B) 5 N
C) 10 N
D) 15 N

Answer 1

The tension in a massless string supporting a 1 kg mass is calculated using the formula T = mg, which yields approximately 9.81 N. The closest answer choice to this value is 10 N.

Step-by-step explanation:

The question pertains to Physics, specifically to finding the tension in a string supporting a mass under the influence of gravity.

For a 1 kg mass being supported by a massless string, the tension can be calculated using the formula T = mg, where T is the tension, m is the mass, and g is the acceleration due to gravity (approximately 9.81 m/s² on Earth). Therefore, the tension T in the string is:

T = (1 kg)(9.81 m/s²) = 9.81 N.

Since none of the options given (A) 0 N, (B) 5 N, (C) 10 N, (D) 15 N matches 9.81 N exactly, the closest correct answer would be (C) 10 N, which is approximately the actual tension in the string.