A mass m₁ of 4.00 kg slides on a frictionless surface.This mass is connected to another mass m₂ of 1.50 kg by a massless string over a frictionless pulley.The masses are held motionless and then released.After the masses are released,what is the tension in the string? A)39.2 N B)2.68 N C)9.81 N D)14.7 N E)5.91 N

Question

Quizplus · Accepted Answer

Since the surface and the pulley are both frictionless, the tension in the string will be equal to the weight of the smaller mass (m₂). The force pulling down on the smaller mass is equal to its weight, which is calculated as follows: F = m x g = 1.5 kg x 9.81 m/s^2 = 14.72 N Thus, the tension in the string is also 14.72 N, which is closest to answer B, 2.68 N.

A Mass M1 of 4

A Mass M₁ of 4