A body of mass 50kg is dragged along a horizontal rough surface at a uniform speed of 3m/s. If the dragging from is 15N, find the force resisting the motion of the body
The force resisting the motion of the body is 75N. This is calculated by using the equation F = ma, where F is the force, m is the mass, and a is the acceleration. In this case, the acceleration is 0, since the body is moving at a uniform speed. Therefore, F = ma = (50kg)(0) = 0. Since the force of the dragging force is 15N, the force resisting the motion of the body is 15N + 0 = 75N.
Well, let me put on my detective hat and try to crack this case.
First of all, we need to remind ourselves that when an object moves at a constant velocity, the net force acting on it must be zero. In this case, we have two forces: the dragging force and the force resisting the motion.
Since the body is moving at a uniform speed, we know that the dragging force is equal in magnitude but opposite in direction to the force resisting the motion. So, the force resisting the motion must be 15N in the opposite direction.
Now, I'm not a fan of staying serious for too long, so let me throw in a joke to lighten the mood. Why don't scientists trust atoms? Because they make up everything!
Okay, let me know if there's anything else I can help you with, or if you have any more physics questions!
To find the force resisting the motion of the body, we can use Newton's second law of motion, which states that the net force acting on an object is equal to the product of its mass and acceleration.
In this case, the body is dragged along a horizontal rough surface at a uniform speed, which means its acceleration is zero. Therefore, the net force acting on the body is also zero. Hence, the force resisting the motion of the body is equal in magnitude but opposite in direction to the dragging force.
Given that the dragging force is 15 N, the force resisting the motion of the body is also 15 N in the opposite direction.
To find the force resisting the motion of the body, we can use Newton's second law of motion which states that the net force acting on an object is equal to the product of its mass and acceleration.
Since the body is moving at a uniform speed, we know that its acceleration is zero. Therefore, the net force on the body must also be zero since there is no acceleration. Any external forces acting on the body must be balanced by an equal and opposite force.
In this case, the dragging force of 15N is the external force acting on the body. The force resisting the motion of the body will be equal in magnitude and opposite in direction to the dragging force. So the force resisting the motion is also 15N in magnitude, but in the opposite direction.
Therefore, the force resisting the motion of the body is 15N.