You pull horizontally on a 50-kg crate with a force of 450 N and the friction force on the crate is 250 N. The acceleration of the crate is :

To find the acceleration of the crate, we can use Newton's second law of motion, which states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).<br /><br />First, we need to calculate the net force acting on the crate. The net force is the difference between the applied force and the friction force:<br /><br />Net force = Applied force - Friction force<br />Net force = 450 N - 250 N<br />Net force = 200 N<br /><br />Now, we can use Newton's second law to find the acceleration:<br /><br />F = ma<br />200 N = 50 kg * a<br /><br />To solve for acceleration (a), divide both sides of the equation by 50 kg:<br /><br />a = 200 N / 50 kg<br />a = 4 m/s²<br /><br />Therefore, the acceleration of the crate is 4 m/s².