- #36
LockeZz
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so.. for the part A 2nd part.. is ask for the maximum deceleration as initial velocity approaching infinity.. Does that means my final velocity still remain the same? which is 0?
Yes, the final velocity is still zero, but you are asked to find the maximum deceleration time as the initial velocity v0 becomes larger and larger.LockeZz said:so.. for the part A 2nd part.. is ask for the maximum deceleration as initial velocity approaching infinity.. Does that means my final velocity still remain the same? which is 0?
Yes, you may assume that x0=0. Substitute t1 and also the time has come to let v0 become very large.LockeZz said:get rid of the x0 ad substitute the t1?
Not yet. Do you recognize the ratio in the argument of the log for what it is? Specifically, can you simplify the numerator some?LockeZz said:should i bother about v0?
Frictional force is a resistance force that occurs when two surfaces come into contact and slide against each other. It acts in the opposite direction of motion and is caused by the microscopic irregularities on the surfaces.
Frictional force can slow down or stop the motion of an object without a driving force. This is because the force of friction acts in the opposite direction of motion, causing the object to lose its momentum and eventually come to a stop.
Yes, frictional force can be beneficial in certain situations. For example, it allows us to walk without slipping and helps vehicles come to a stop when the brakes are applied. However, in most cases, frictional force is considered a hindrance to motion.
The magnitude of frictional force can be calculated using the formula F = μN, where F is the frictional force, μ is the coefficient of friction, and N is the normal force between the two surfaces in contact. The direction of frictional force is always opposite to the direction of motion.
Frictional force can be reduced by using lubricants, such as oil or grease, between the two surfaces in contact. This creates a thin layer that reduces the surface roughness and allows for smoother motion. Additionally, using smoother surfaces or reducing the weight of the object can also help reduce frictional force.