A 39.5 kg sled is pulled forward with a 72.8 N force which causes an acceleration of 0.521 m/s how much friction force acts on the sled
To determine the friction force acting on the sled, we can use Newton's second law of motion, which states that the net force on an object is equal to the mass of the object multiplied by its acceleration.
The given mass of the sled is 39.5 kg, and the acceleration is 0.521 m/s². Therefore, the net force acting on the sled can be calculated as follows:
Net force = mass × acceleration
Net force = 39.5 kg × 0.521 m/s²
Net force = 20.5595 N
Since the force pulling the sled forward is 72.8 N, we can find the frictional force by subtracting the force pulling the sled from the net force:
Frictional force = Net force - Force pulling the sled
Frictional force = 20.5595 N - 72.8 N
Frictional force = -52.2405 N
The negative sign indicates that the friction force is acting in the opposite direction to the applied force. In this case, it means the friction force is opposing the motion of the sled.
Therefore, the friction force acting on the sled is approximately -52.24 N.
To determine the friction force acting on the sled, we need to consider Newton's second law of motion. This law states that the sum of all forces applied to an object is equal to the mass of the object multiplied by its acceleration:
ΣF = m * a
In this case, the force pulling the sled forward is given as 72.8 N and the acceleration of the sled is 0.521 m/s². The mass of the sled is given as 39.5 kg. To calculate the friction force, we need to subtract the force applied to the sled from the sum of the forces acting on it.
ΣF = F_applied - F_friction
Therefore, we rearrange the equation to solve for the friction force:
F_friction = F_applied - ΣF
Now, let's substitute the given values into the equation:
F_friction = 72.8 N - (39.5 kg * 0.521 m/s²)
F_friction = 72.8 N - 20.5595 N
Finally, we calculate the friction force:
F_friction ≈ 52.24 N
Therefore, the friction force acting on the sled is approximately 52.24 N.
F-Ff = M*a.
72.8-Ff = 39.5 * 0.521,
Ff = Force of friction = ?
The net force causing the acceleration is
F = ma = 39.5 * 0.521 = 20.58N
So now you can get how much was used to overcome the opposing force of the friction.