Question

One 3.2 kg paint bucket is hanging by a massless cord:

a) Tension in the cord is equal to the weight of the bucket
b) Tension in the cord is greater than the weight of the bucket
c) Tension in the cord is less than the weight of the bucket
d) Tension in the cord is zero

Answer 1

The tension in the cord is greater than the weight of the bucket because the tension in the cord is equal to the force needed to support the weight of the bucket, which is greater than the weight of the bucket itself.

Step-by-step explanation:

The tension in the cord is greater than the weight of the bucket. The tension in the cord is greater than the weight of the bucket because the tension in the cord is equal to the force needed to support the weight of the bucket, which is greater than the weight of the bucket itself.

To understand why, we can use Newton's second law. The tension in the cord is equal to the force needed to support the weight of the bucket. The weight of the bucket is equal to its mass multiplied by the acceleration due to gravity (9.8 m/s²).

So the tension in the cord is T = m * g, where m is the mass of the bucket and g is the acceleration due to gravity. In this case, T = 3.2 kg * 9.8 m/s², which is greater than the weight of the bucket.