Determine the magnitude of the acceleration of the rock

Assignment Help Physics
Reference no: EM13117762

Q.  Sam, whose mass is 60 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 280 N and a coefficient of kinetic friction on snow of 0.15. Unfortunately, the skis run out of fuel after only 15 s. 

Q. A rock of mass 47 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 252 N. What is the magnitude of the acceleration of the rock

Reference no: EM13117762

Questions Cloud

Find probability and statistics : Probability & Statistics Questions. A machine produces 12,000 bolts per day, with a 3% defect rate. What is the probability that twelve defective bolts will be found in a sample of 600 bolts?
Determine the rate of metal removal : Determine the rate of metal removal when the wheel is engaged in the work and if the number of active grits per square inch = 200, determine the average chip length and the number of chips formed per time
Determine if variables are directly proportional : For each of the relationships described below, determine if the variables are directly proportional. Write a sentence or two for each to justify your answers.
Draw the dominant structure of each of these amino acid : Under certain conditions the side chains ( R- groups) of asparitic acid and lysine can form an ionic bond with one another the pKa for ionizing groups on these side chains is 3.86 for aparitic acid and 10.53 for lysine A) draw the dominante struct..
Determine the magnitude of the acceleration of the rock : A rock of mass 47 kg accidentally breaks loose from the edge of a cliff and falls straight down. The magnitude of the air resistance that opposes its downward motion is 252 N. Determine the magnitude of the acceleration of the rock
How responses differ among three groups of employees : A breakdown of the responses is shown in the accompanying table. Is there evidence at the 10% level to infer that the responses differ among the three groups of employees?
What do you suppose is the chemical basis : At a beuty salon one might request a "permanent" to alter the shape of ones hair which is chiefly composed of fibrous proteins known as keratins. to increase the waves or curls in one's hair, the beatician treats your hair with a reducing agent ( ..
Find the probability that the random variable lies : A random variable defined on all real numbers has a probability density proportional to: c/ X2 + 1. What is c? What is the probability that the random variable lies between 0 and 1?
What was the concentration of the solution : A chemist wanted to determine the concentration of a solution of lactic acid, HC3H5O3. She found that the pH of the solution was 2.59. What was the concentration of the solution.

Reviews

Write a Review

Physics Questions & Answers

  Blocks are lined up in a row on a frictionless table

blocks are lined up in a row on a frictionless table. How much force does the 8.0 block exert on the 7 block.

  Conclude the tension in the wire

You are driving to grocery store at 21. You are 100 from an intersection when the traffic light turns red. Presume that your reaction time is 0.75 and that your car brakes with constant acceleration. How far from the intersection are you when you ..

  In what direction is the electron deflected

An electron has an initial velocity of 3.50 106 m/s in the x direction. It enters a uniform electric field = (400 N/C) , which is in the y direction. (a) Find the acceleration of the electron.

  Find the position at which a third charge placed

A major-league pitcher can throw a baseball in excess of 44.2m/s. If a ball is thrown horizontally at this speed, how much would it drop by the time it reaches the catcher who is 16.10 m away from the point of release.

  What is the average induced emf in the coil

A projectile is fired with an initial speed v at an angle of 30 degrees above the horizontal from a height of 40meters above the ground. The projectile strikes the ground with a speed of 1.2v. Find v.

  Find coefficient of kinetic friction between child and slide

suppose you are outdoors in the Boundary Water Canoe Area of Northern Minnesota. You have in your hand the empty tube from a roll of paper towel. Outline the mathematical steps you would take to help you achieve an accurate estimate of the stars i..

  What will be the total kinetic energy

A lead ball is dropped into a lake from a diving board 5 above the water. After entering the water, it sinks to the bottom with the constant velocity equal to the velocity with which it hit the water. The ball reaches the bottom 3.20 after it is f..

  At what position x do the pulses begin to meet

A 125 g wire is held under a tension of 218 N with one end at x = 0 and the other at x = 12.0 m. At time t = 0, pulse 1 is sent along the wire from the end at x = 12.0 m. At time t = 25.5 ms, pulse 2 is sent along the wire from the end at x = 0. A..

  What is her speed as she passes him

David is driving a steady 26 when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.8 at instant when David passes.

  Carrier power, total power, power in sideband

Find the power in sideband, total power, carrier power, carrier rms voltage and the peak voltages for carrier and  sidebands of AM transmitter.

  What is the displacement of car from the point of origin

You're driving down the highway late one night at 18 - {rm m}/{rm s} when a deer steps onto the road 45 -{rm m} in front of you. Your reaction time before stepping on the brakes is 0.50- {rm s}, and the maximum deceleration of your car is 11 {rm m..

  What would be the block''s velocity

An electric field of 220000 N/C points due west at a certain spot. What is the magnitude of the force that acts on a charge of -10C at the spot.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd