A person drops a ball of 100g at rest from a height of 1000m. He observes that there is air resistance (in newtons) acting on the body and it is proportional to the velocity v (in meters per second). He also notes that the limiting velocity is 245 meters per second. a) What is the velocity and distance after t seconds? b) What is the time t at which the velocity will be one-fifth of the limiting velocity?

A person drops a ball of 100g at rest from a height of 1000m. He observes that there is air resistance (in newtons) acting on the body and it is proportional to the velocity v (in meters per second). He also notes that the limiting velocity is 245 meters per second. a) What is the velocity and distance after t seconds? b) What is the time t at which the velocity will be one-fifth of the limiting velocity?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter7: Quantum Mechanics

Section: Chapter Questions

Problem 40P: Show that (x,t)=Aei(kwt) is a valid solution to Schrödinger's time-dependent equation.

See similar textbooks

Similar questions

A red train traveling at 72 miles/hour (mph) and a green train traveling at 100 mph are headed toward one another along a straight, level track. When they are 2500 feet apart, each engineer sees the other's train and applies the brakes. The brakes decelerates each train at the rate of 2.0 meters per second squared. Is their a collision? If so, what is the speed of each train at impact? If not, what is the separation between the trains when they stop? Give the given and solution:
two identical box moves with the same speed along perpendicular trajectories, one along horizontal from left to right and the other one along a vertical direction from bottom to up, collide with each other and stick together. What is its final velocity(magnitude and direction)?
A box of mass 100.0kg slides up a ramp at 20m/s with a friction coefcient between the box andground of 0.40. A motion sensor is tracking the box as it slides. What will the plot of speed vs timelook like? Please include intercepts (x and y) with numbers labeled.
Sometime in the future, we will develop a space ship which can go up to half the speed of light. On a flight to the nearest star which is 4.2 light years away, we will keep the acceleration up to one g. How long will the trip take? (The trip will have three sections, the first accelerating up to maximum speed, the second at constant speed, and the third decelerating at - g to rest at the destination.)
Show that (x,t)=Aei(kwt) is a valid solution to Schrödinger's time-dependent equation.
What role does reaction time play in applying the brakes to your car in emergency situations? Assume your car is traveling at 100 kph when a pedestrian suddenly crosses the street in front of your car. How far will your car travel before you can apply the brakes? Show your solution. What is the likelihood of running over the pedestrian?(Assume that you can bring the car to a stop in 10 m once you step on the brakes when you are driving at 50 )
A tourist at a rim of a canyon yells "hello!" toward the opposite side. She hears the echo "hello" four seconds later. If the speed of sound is 340 m/s, how far away was the canyon wall that produced the echo?
What is the velocity function, v(t), of a train accelerating at a rate of 50m/s^2 and traveling at a rate of 100m/s after t=36s?
The Boring Company has proposed transporting people between Los Angeles and San Francisco, a distance of 540 km, through an undergroun... 2.5 m/s2 until reaching a speed of 330 m/s. Later they would brake at 1.5 m/s2 . A launch of one pod per minute would transport 240 passengers per hour, roughly equivalent to one jet plane per hour. (a) What would be the trip time in minutes from Los Angeles to San Francisco? (b)How far apart would two adjacent pods be on the constant-speed segment of the journey?
Please help me in solving this question about free fall motion. asap, THANK YOU
A sandbag motionless in outer space is hit by a three-times- as massive sandbag moving at 12m/ s. They stick together and move at what speed?
Let's say we have a particle in motion. If f(x) represents the function of the particle's velocity, what does the integral of f(x) represent?