Question

shown below is a graph of a force applied to a small object as a function of time. if the object has a mass of 5.0kg and is at rest at t=0s, how fast is the object moving at t=4.0s?

Answer 1

The speed of the object at the time and applied force is 4.8 m/s.

What is Newton's second law of motion?

• Newton's second law of motion states that the force applied to a body is directly proportional to the mass and acceleration of the body.

The given parameters:

• Mass of the object, m = 5.0 kg.
• Time, t = 4.0 s
• From the graph, the force applied to the object at time, 4 s = 6 N.

The speed of the object at the time and applied force is calculated by applying Newton's second law of motion as follows;

$F = \frac{mv}{t} \\\\mv = Ft\\\\v = \frac{Ft}{m} \\\\v = \frac{6 \times 4}{5} \\\\v = 4.8 \ m/s$

Thus, the speed of the object at the time and applied force is 4.8 m/s.

Learn more about Newton's second law of motion here: https://brainly.com/question/3999427