A 3 kg block is at rest on a horizontal surface. If a horizontal force of 12 N i
Practice Questions
Q1
A 3 kg block is at rest on a horizontal surface. If a horizontal force of 12 N is applied, what is the block's acceleration assuming no friction?
2 m/s²
3 m/s²
4 m/s²
5 m/s²
Questions & Step-by-Step Solutions
A 3 kg block is at rest on a horizontal surface. If a horizontal force of 12 N is applied, what is the block's acceleration assuming no friction?
Correct Answer: 4 m/s²
Step 1: Identify the mass of the block, which is 3 kg.
Step 2: Identify the applied force, which is 12 N.
Step 3: Use the formula for acceleration, which is a = F/m.
Step 4: Substitute the values into the formula: a = 12 N / 3 kg.
Step 5: Calculate the acceleration: 12 divided by 3 equals 4.
Step 6: Conclude that the block's acceleration is 4 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.
Force and Acceleration Relationship – Understanding how to calculate acceleration using the formula a = F/m, where F is the net force and m is the mass.
