A box attached to a spring is being pulled across a flat frictionless surface. The spring constant is 45 N/m, the box is accelerating at

Question

A box attached to a spring is being pulled across a flat frictionless surface. The spring constant is 45 N/m, the box is accelerating at
1.3 m/s2, and the spring is stretched by 0.88 m. What is the mass of the box?
26 kg
O 38 kg
30 kg
O 33 kg
Plzzzzz help

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Diễm Thu 4 years 2021-07-30T15:59:39+00:00 1 Answers 11 views 0

Answers ( )

  1. Tryphena
    0
    2021-07-30T16:01:13+00:00
    Reply

    Answer:

    Mass = 30.46 kg

    Explanation:

    Given the following data;

    Spring constant = 45 N/m

    Acceleration = 1.3 m/s²

    Extension = 0.88 m

    To find the mass of the box;

    First of all, we would determine the force acting on the spring.

    Force = spring constant * extension

    Force = 45 * 0.88

    Force = 39.6 N

    Next, we find the mass using Newton’s second equation of motion.

    Force = mass * acceleration

    39.6 = mass * 1.3

    Mass = 39.6/1.3

    Mass = 30.46 kg

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