A wagon with a mass of 30.0 kg is accelerated across a level surface at 0.5 m/s2. What net force acts on the wagon? F = m*a

Question

a
9.0 N
b
610 N
c
15 N
d
150 N
Question 28 (1 point)
According to Newton’s second law, when the same force is applied to two objects of different masses,
a
the object with greater mass will experience a greater acceleration and the object with less mass will experience a smaller acceleration.
b
the object with greater mass will experience a smaller acceleration and the object with less mass will experience a greater acceleration.
c
the object with greater mass will experience a small acceleration and the object with less mass will experience an even smaller acceleration.
d
the object with greater mass will experience a great acceleration and the object with less mass will experience an even greater acceleration.

Answer 1

Question 27: What net force acts on the wagon?

To find the net force acting on the wagon, we can use Newton's second law, which states $F=m\cdot a$.

Given:

• Mass (m) = 30.0 kg
• Acceleration (a) = 0.5 m/s²

Calculating the force:

$$F=m\cdot a=30.0,\text{kg}\cdot 0.5,{\text{m/s}}^2=15,\text{N}$$

Therefore, the net force acting on the wagon is 15 N (option c).

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Question 28: According to Newton’s second law, when the same force is applied to two objects of different masses...

The correct answer is:

b: the object with greater mass will experience a smaller acceleration and the object with less mass will experience a greater acceleration.

This is because, according to Newton’s second law ($F=m\cdot a$), when the same force is applied to two objects with different masses, the acceleration of each object is inversely proportional to its mass. The larger mass will have a smaller acceleration, and the smaller mass will have a larger acceleration.