A 12 kg object is pulled with a force of 48 N. If the frictional force is 12 N,

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Question: A 12 kg object is pulled with a force of 48 N. If the frictional force is 12 N, what is the acceleration of the object? (2023)

Options:

Correct Answer: 3 m/s²

Exam Year: 2023

Solution:

Net force = 48 N - 12 N = 36 N. Acceleration a = F/m = 36 N / 12 kg = 3 m/s².

A 12 kg object is pulled with a force of 48 N. If the frictional force is 12 N, what is the acceleration of the object? (2023)

A 12 kg object is pulled with a force of 48 N. If the frictional force is 12 N, what is the acceleration of the object? (2023)

Step 1: Identify the total force applied to the object, which is 48 N.
Step 2: Identify the frictional force acting against the motion, which is 12 N.
Step 3: Calculate the net force by subtracting the frictional force from the total force: 48 N - 12 N = 36 N.
Step 4: Identify the mass of the object, which is 12 kg.
Step 5: Use the formula for acceleration, which is acceleration (a) = net force (F) / mass (m).
Step 6: Substitute the values into the formula: a = 36 N / 12 kg.
Step 7: Calculate the acceleration: a = 3 m/s².

Newton's Second Law of Motion – This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
Net Force Calculation – Understanding how to calculate the net force by subtracting frictional force from the applied force.
Acceleration Calculation – Using the formula a = F/m to find acceleration once the net force is determined.