Question

a railroad wagon accelerates from rest. a small metallic sphere of mass m is suspended at the end of a light string which attached to the wagon’s ceiling and makes an angle θ with the vertical.

Answer 1

To find the force on a wagon weighing 55 kg and accelerating at 0.0255 m/s², apply Newton's second law (F = m × a) to get a force of 1.4025 newtons.

Step-by-step explanation:

The force F on an object is equal to its mass m multiplied by its acceleration a. For determining the force on a wagon with a mass of 55 kg that accelerates at the rate of 0.0255 m/s², we apply Newton's second law of motion. The calculation is as follows:

F = m × a

Substituting the given values:

F = 55 kg × 0.0255 m/s²

Thus, the force on the wagon: F = 1.4025 N (newtons).