A 50 kg crate is pushed with a force of 200 N. If the frictional force is 50 N,
Practice Questions
Q1
A 50 kg crate is pushed with a force of 200 N. If the frictional force is 50 N, what is the acceleration? (2022)
2 m/s²
3 m/s²
4 m/s²
5 m/s²
Questions & Step-by-Step Solutions
A 50 kg crate is pushed with a force of 200 N. If the frictional force is 50 N, what is the acceleration? (2022)
Step 1: Identify the mass of the crate, which is 50 kg.
Step 2: Identify the applied force, which is 200 N.
Step 3: Identify the frictional force, which is 50 N.
Step 4: Calculate the net force by subtracting the frictional force from the applied force: Net force = 200 N - 50 N.
Step 5: Perform the subtraction: 200 N - 50 N = 150 N.
Step 6: Use the formula for acceleration, which is acceleration (a) = net force (F) / mass (m).
Step 7: Substitute the values into the formula: a = 150 N / 50 kg.
Step 8: Perform the division: 150 N / 50 kg = 3 m/s².
Newton's Second Law – 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.
Frictional Force – Understanding how friction opposes motion and affects the net force acting on an object.
Net Force Calculation – The process of determining the net force by subtracting friction from the applied force.
