"A block slides on a horizontal plane. It starts at speed 10km/h, but friction reduces this to 5km/h over a distance of 23m." This is all what is stated in the assignment. I would have solved if the mass had been told ..haruspex said:I presume there was a diagram, or maybe just a rather more informative description.
At a guess, the set up is:
"A block slides on a horizontal plane. It starts at speed 10km/h, but friction reduces this to 5km/h over a distance of 23m."
Per forum rules, you need to show an attempt.
What standard equations have you been taught that may be relevant?
So let the mass be m and see what happens.gladidi said:"A block slides on a horizontal plane. It starts at speed 10km/h, but friction reduces this to 5km/h over a distance of 23m." This is all what is stated in the assignment. I would have solved if the mass had been told ..
The friction coefficient is a measure of the amount of resistance that one surface encounters when moving over another surface. It is a dimensionless quantity and is typically denoted by the symbol "μ".
The friction coefficient can be calculated by dividing the force of friction by the normal force. The force of friction is the force that opposes the motion of an object, while the normal force is the force exerted by a surface on an object in contact with it.
The friction coefficient can be affected by several factors including the roughness of the surfaces in contact, the type of material, the amount of force applied, and the temperature.
The friction coefficient can affect the speed of an object by slowing it down. In the case of an object sliding down a slippery plane, the higher the friction coefficient, the more resistance the object will encounter and the slower it will slide down the plane.
Yes, the friction coefficient can be greater than 1. This means that the force of friction is greater than the normal force, resulting in a stronger resistance to motion. However, a friction coefficient greater than 1 is uncommon and typically only occurs in extreme cases.